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URL: https://nvd.nist.gov/vuln/detail/CVE-2021-40438

⇱ NVD - CVE-2021-40438

  1. Vulnerabilities

CVE-2021-40438 Detail

Description

A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf Apache Software Foundation, CVE Third Party Advisory 
https://httpd.apache.org/security/vulnerabilities_24.html Apache Software Foundation, CVE Release Notes  Vendor Advisory 
https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a%40%3Cusers.httpd.apache.org%3E Apache Software Foundation, CVE Mailing List 
https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37%40%3Cbugs.httpd.apache.org%3E Apache Software Foundation, CVE Mailing List 
https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E Apache Software Foundation, CVE Mailing List 
https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E Apache Software Foundation, CVE Mailing List 
https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E Apache Software Foundation, CVE Mailing List 
https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E Apache Software Foundation, CVE Mailing List 
https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00%40%3Cusers.httpd.apache.org%3E Apache Software Foundation, CVE Mailing List 
https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html Apache Software Foundation, CVE Mailing List  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/ Apache Software Foundation, CVE Release Notes 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/ Apache Software Foundation, CVE Release Notes 
https://security.gentoo.org/glsa/202208-20 Apache Software Foundation, CVE Third Party Advisory 
https://security.netapp.com/advisory/ntap-20211008-0004/ Apache Software Foundation, CVE Third Party Advisory 
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ Apache Software Foundation, CVE Broken Link  Third Party Advisory 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40438 CISA-ADP US Government Resource 
https://www.debian.org/security/2021/dsa-4982 Apache Software Foundation, CVE Mailing List  Third Party Advisory 
https://www.oracle.com/security-alerts/cpuapr2022.html Apache Software Foundation, CVE Patch  Third Party Advisory 
https://www.oracle.com/security-alerts/cpujan2022.html Apache Software Foundation, CVE Patch  Third Party Advisory 
https://www.tenable.com/security/tns-2021-17 Apache Software Foundation, CVE Third Party Advisory 

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability Name Date Added Due Date Required Action
Apache HTTP Server-Side Request Forgery (SSRF) 12/01/2021 12/15/2021 Apply updates per vendor instructions.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-918 Server-Side Request Forgery (SSRF) 👁 cwe source acceptance level
NIST   Apache Software Foundation  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

36 change records found show changes

CVE Modified by CISA-ADP 6/17/2026 12:06:54 AM

Action Type Old Value New Value
Added SSVC 
{"timestamp":"2025-02-06T21:08:29.032806Z","id":"CVE-2021-40438","options":[{"exploitation":"active"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

CVE Modified by Apache Software Foundation 6/17/2026 12:06:54 AM

Action Type Old Value New Value
Added Affected 
[{"vendor":"Apache Software Foundation","product":"Apache HTTP Server","versions":[{"version":"Apache HTTP Server 2.4","lessThanOrEqual":"2.4.48","versionType":"custom","status":"affected"}]}]

Modified Analysis by NIST 10/27/2025 1:37:06 PM

Action Type Old Value New Value
Added Reference Type 
CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40438 Types: US Government Resource

CVE Modified by CISA-ADP 10/21/2025 8:17:44 PM

Action Type Old Value New Value
Added Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40438

CVE Modified by CISA-ADP 10/21/2025 4:18:46 PM

Action Type Old Value New Value
Removed Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40438

CVE Modified by CISA-ADP 10/21/2025 3:19:21 PM

Action Type Old Value New Value
Added Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40438

Reanalysis by NIST 5/16/2025 11:27:13 AM

Action Type Old Value New Value
Added CPE Configuration 
AND
 OR
 *cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:*
 OR
 cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
 cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:*
 OR
 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
 cpe:2.3:o:redhat:enterprise_linux_server_workstation:7.0:*:*:*:*:*:*:*
Added CPE Configuration Record truncated, showing 2048 of 4715 characters.
View Entire Change Record
OR
 *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus_s390x:8.2:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.2:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.1:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.1:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_service
Added CPE Configuration 
OR
 *cpe:2.3:o:resf:rocky_linux:8.0:*:*:*:*:*:*:*

Modified Analysis by NIST 3/21/2025 5:01:59 PM

Action Type Old Value New Value

CVE Modified by CISA-ADP 2/06/2025 4:15:16 PM

Action Type Old Value New Value
Added CVSS V3.1 
AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CVE Modified by CVE 11/21/2024 1:24:06 AM

Action Type Old Value New Value
Added Reference 
https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf
Added Reference 
https://httpd.apache.org/security/vulnerabilities_24.html
Added Reference 
https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a%40%3Cusers.httpd.apache.org%3E
Added Reference 
https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37%40%3Cbugs.httpd.apache.org%3E
Added Reference 
https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E
Added Reference 
https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E
Added Reference 
https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E
Added Reference 
https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E
Added Reference 
https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00%40%3Cusers.httpd.apache.org%3E
Added Reference 
https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html
Added Reference 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
Added Reference 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/
Added Reference 
https://security.gentoo.org/glsa/202208-20
Added Reference 
https://security.netapp.com/advisory/ntap-20211008-0004/
Added Reference 
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ
Added Reference 
https://www.debian.org/security/2021/dsa-4982
Added Reference 
https://www.oracle.com/security-alerts/cpuapr2022.html
Added Reference 
https://www.oracle.com/security-alerts/cpujan2022.html
Added Reference 
https://www.tenable.com/security/tns-2021-17

Modified Analysis by NIST 7/24/2024 1:08:07 PM

Action Type Old Value New Value
Changed CPE Configuration 
OR
 *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
 *cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
 *cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*


 
OR
 *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
 *cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
 *cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*
 *cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:*
Changed CPE Configuration 
OR
 *cpe:2.3:a:siemens:sinec_nms:*:*:*:*:*:*:*:*
 *cpe:2.3:a:siemens:sinema_server:14.0:-:*:*:*:*:*:*


 
OR
 *cpe:2.3:a:siemens:ruggedcom_nms:*:*:*:*:*:*:*:*
 *cpe:2.3:a:siemens:sinec_nms:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.3
 *cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:* versions up to (excluding) 3.1
 *cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:*:*:*:*:*:*:*
 *cpe:2.3:a:siemens:sinema_server:14.0:-:*:*:*:*:*:*
Added CPE Configuration 
OR
 *cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:* versions up to (including) 5.19.1
Changed Reference Type 
https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a%40%3Cusers.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a%40%3Cusers.httpd.apache.org%3E Mailing List
Changed Reference Type 
https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37%40%3Cbugs.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37%40%3Cbugs.httpd.apache.org%3E Mailing List
Changed Reference Type 
https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E Mailing List
Changed Reference Type 
https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E Mailing List
Changed Reference Type 
https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E Mailing List
Changed Reference Type 
https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E Mailing List
Changed Reference Type 
https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00%40%3Cusers.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00%40%3Cusers.httpd.apache.org%3E Mailing List
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/ Release Notes
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/ Release Notes
Changed Reference Type 
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ Third Party Advisory


 
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ Broken Link, Third Party Advisory
Changed Reference Type 
https://www.debian.org/security/2021/dsa-4982 Third Party Advisory


 
https://www.debian.org/security/2021/dsa-4982 Mailing List, Third Party Advisory

CVE Modified by Apache Software Foundation 5/14/2024 5:26:54 AM

Action Type Old Value New Value

CVE Modified by Apache Software Foundation 11/06/2023 10:38:35 PM

Action Type Old Value New Value
Added Reference 
Apache Software Foundation https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a%40%3Cusers.httpd.apache.org%3E [No types assigned]
Added Reference 
Apache Software Foundation https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37%40%3Cbugs.httpd.apache.org%3E [No types assigned]
Added Reference 
Apache Software Foundation https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E [No types assigned]
Added Reference 
Apache Software Foundation https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E [No types assigned]
Added Reference 
Apache Software Foundation https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E [No types assigned]
Added Reference 
Apache Software Foundation https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E [No types assigned]
Added Reference 
Apache Software Foundation https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00%40%3Cusers.httpd.apache.org%3E [No types assigned]
Added Reference 
Apache Software Foundation https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/ [No types assigned]
Added Reference 
Apache Software Foundation https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/ [No types assigned]
Removed Reference 
Apache Software Foundation https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a@%3Cusers.httpd.apache.org%3E
Removed Reference 
Apache Software Foundation https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37@%3Cbugs.httpd.apache.org%3E
Removed Reference 
Apache Software Foundation https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432@%3Cusers.httpd.apache.org%3E
Removed Reference 
Apache Software Foundation https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c@%3Cusers.httpd.apache.org%3E
Removed Reference 
Apache Software Foundation https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697@%3Cusers.httpd.apache.org%3E
Removed Reference 
Apache Software Foundation https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029@%3Cusers.httpd.apache.org%3E
Removed Reference 
Apache Software Foundation https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00@%3Cusers.httpd.apache.org%3E
Removed Reference 
Apache Software Foundation https://lists.fedoraproject.org/archives/list/[email protected]/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
Removed Reference 
Apache Software Foundation https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/

Modified Analysis by NIST 10/04/2022 10:21:29 PM

Action Type Old Value New Value
Changed CPE Configuration 
OR
 *cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*


 
OR
 *cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:secure_global_desktop:5.6:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
Added CPE Configuration 
OR
 *cpe:2.3:a:siemens:sinec_nms:*:*:*:*:*:*:*:*
 *cpe:2.3:a:siemens:sinema_server:14.0:-:*:*:*:*:*:*
Changed Reference Type 
https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf No Types Assigned


 
https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf Third Party Advisory
Changed Reference Type 
https://security.gentoo.org/glsa/202208-20 No Types Assigned


 
https://security.gentoo.org/glsa/202208-20 Third Party Advisory
Changed Reference Type 
https://www.oracle.com/security-alerts/cpuapr2022.html No Types Assigned


 
https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory

CVE Modified by Apache Software Foundation 8/15/2022 7:15:29 AM

Action Type Old Value New Value
Added Reference 
https://security.gentoo.org/glsa/202208-20 [No Types Assigned]

CVE Modified by Apache Software Foundation 6/14/2022 7:15:10 AM

Action Type Old Value New Value
Added Reference 
https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf [No Types Assigned]

CVE Modified by Apache Software Foundation 4/19/2022 8:16:21 PM

Action Type Old Value New Value
Added Reference 
https://www.oracle.com/security-alerts/cpuapr2022.html [No Types Assigned]

Modified Analysis by NIST 3/25/2022 2:37:27 PM

Action Type Old Value New Value
Changed CPE Configuration 
OR
 *cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
 *cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*


 
OR
 *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
 *cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
 *cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*
Added CPE Configuration 
OR
 *cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*
Changed Reference Type 
https://www.oracle.com/security-alerts/cpujan2022.html No Types Assigned


 
https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory

CVE Modified by Apache Software Foundation 2/07/2022 11:16:27 AM

Action Type Old Value New Value
Added Reference 
https://www.oracle.com/security-alerts/cpujan2022.html [No Types Assigned]

Modified Analysis by NIST 11/29/2021 12:20:20 PM

Action Type Old Value New Value
Changed Reference Type 
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ No Types Assigned


 
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ Third Party Advisory

CVE Modified by Apache Software Foundation 11/24/2021 6:15:08 PM

Action Type Old Value New Value
Added Reference 
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ [No Types Assigned]

Modified Analysis by NIST 11/01/2021 10:38:17 AM

Action Type Old Value New Value
Changed CPE Configuration 
OR
 *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*


 
OR
 *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
 *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
 *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Added CPE Configuration 
OR
 *cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
 *cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*
Added CPE Configuration 
OR
 *cpe:2.3:o:f5:f5os:*:*:*:*:*:*:*:* versions from (including) 1.1.0 up to (including) 1.1.4
 *cpe:2.3:o:f5:f5os:*:*:*:*:*:*:*:* versions from (including) 1.2.0 up to (including) 1.2.1
Changed Reference Type 
https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a@%3Cusers.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a@%3Cusers.httpd.apache.org%3E Mailing List, Vendor Advisory
Changed Reference Type 
https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37@%3Cbugs.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37@%3Cbugs.httpd.apache.org%3E Mailing List, Vendor Advisory
Changed Reference Type 
https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00@%3Cusers.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00@%3Cusers.httpd.apache.org%3E Mailing List, Vendor Advisory
Changed Reference Type 
https://security.netapp.com/advisory/ntap-20211008-0004/ No Types Assigned


 
https://security.netapp.com/advisory/ntap-20211008-0004/ Third Party Advisory
Changed Reference Type 
https://www.debian.org/security/2021/dsa-4982 No Types Assigned


 
https://www.debian.org/security/2021/dsa-4982 Third Party Advisory
Changed Reference Type 
https://www.tenable.com/security/tns-2021-17 No Types Assigned


 
https://www.tenable.com/security/tns-2021-17 Third Party Advisory

CVE Modified by Apache Software Foundation 10/19/2021 4:15:08 PM

Action Type Old Value New Value
Added Reference 
https://www.tenable.com/security/tns-2021-17 [No Types Assigned]

CVE Modified by Apache Software Foundation 10/19/2021 8:15:07 AM

Action Type Old Value New Value
Added Reference 
https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00@%3Cusers.httpd.apache.org%3E [No Types Assigned]

CVE Modified by Apache Software Foundation 10/19/2021 5:15:08 AM

Action Type Old Value New Value
Added Reference 
https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a@%3Cusers.httpd.apache.org%3E [No Types Assigned]

CVE Modified by Apache Software Foundation 10/10/2021 3:15:07 PM

Action Type Old Value New Value
Added Reference 
https://www.debian.org/security/2021/dsa-4982 [No Types Assigned]

CVE Modified by Apache Software Foundation 10/08/2021 8:15:07 PM

Action Type Old Value New Value
Added Reference 
https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37@%3Cbugs.httpd.apache.org%3E [No Types Assigned]

CVE Modified by Apache Software Foundation 10/08/2021 11:15:09 AM

Action Type Old Value New Value
Added Reference 
https://security.netapp.com/advisory/ntap-20211008-0004/ [No Types Assigned]

Modified Analysis by NIST 10/04/2021 11:46:25 AM

Action Type Old Value New Value
Added CVSS V3.1 
NIST AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Removed CVSS V3.1 
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added CVSS V2 
NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Removed CVSS V2 
NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Added CPE Configuration 
OR
 *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Changed Reference Type 
https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html No Types Assigned


 
https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html Mailing List, Third Party Advisory

CVE Modified by Apache Software Foundation 10/02/2021 2:15:07 PM

Action Type Old Value New Value
Added Reference 
https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html [No Types Assigned]

Initial Analysis by NIST 9/27/2021 3:09:56 PM

Action Type Old Value New Value
Added CVSS V3.1 
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added CVSS V2 
NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Added CWE 
NIST CWE-918
Added CPE Configuration 
OR
 *cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* versions up to (including) 2.4.48
Added CPE Configuration 
OR
 *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
 *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Changed Reference Type 
https://httpd.apache.org/security/vulnerabilities_24.html No Types Assigned


 
https://httpd.apache.org/security/vulnerabilities_24.html Release Notes, Vendor Advisory
Changed Reference Type 
https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432@%3Cusers.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432@%3Cusers.httpd.apache.org%3E Mailing List, Vendor Advisory
Changed Reference Type 
https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c@%3Cusers.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c@%3Cusers.httpd.apache.org%3E Mailing List, Vendor Advisory
Changed Reference Type 
https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697@%3Cusers.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697@%3Cusers.httpd.apache.org%3E Mailing List, Vendor Advisory
Changed Reference Type 
https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029@%3Cusers.httpd.apache.org%3E No Types Assigned


 
https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029@%3Cusers.httpd.apache.org%3E Mailing List, Vendor Advisory
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/[email protected]/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/[email protected]/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/ Mailing List, Third Party Advisory
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/ Mailing List, Third Party Advisory

CVE Modified by Apache Software Foundation 9/24/2021 9:15:53 PM

Action Type Old Value New Value
Added Reference 
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/ [No Types Assigned]

CVE Modified by Apache Software Foundation 9/23/2021 11:15:08 AM

Action Type Old Value New Value
Added Reference 
https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c@%3Cusers.httpd.apache.org%3E [No Types Assigned]

CVE Modified by Apache Software Foundation 9/23/2021 9:15:11 AM

Action Type Old Value New Value
Added Reference 
https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432@%3Cusers.httpd.apache.org%3E [No Types Assigned]

CVE Modified by Apache Software Foundation 9/23/2021 8:15:08 AM

Action Type Old Value New Value
Added Reference 
https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697@%3Cusers.httpd.apache.org%3E [No Types Assigned]
Added Reference 
https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029@%3Cusers.httpd.apache.org%3E [No Types Assigned]

CVE Modified by Apache Software Foundation 9/20/2021 12:15:14 PM

Action Type Old Value New Value
Added Reference 
https://lists.fedoraproject.org/archives/list/[email protected]/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/ [No Types Assigned]

Quick Info

CVE Dictionary Entry:
CVE-2021-40438
NVD Published Date:
09/16/2021
NVD Last Modified:
06/17/2026
Source:
Apache Software Foundation