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URL: https://nvd.nist.gov/vuln/detail/cve-2023-34048

⇱ NVD - cve-2023-34048

  1. Vulnerabilities

CVE-2023-34048 Detail

Description

vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger an out-of-bounds write potentially leading to remote code execution.


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://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-34048 CISA-ADP US Government Resource 
https://www.vicarius.io/vsociety/posts/understanding-cve-2023-34048-a-zero-day-out-of-bound-write-in-vcenter-server CVE Exploit  Third Party Advisory 
https://www.vmware.com/security/advisories/VMSA-2023-0023.html CVE, VMware Vendor 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
VMware vCenter Server Out-of-Bounds Write Vulnerability 01/22/2024 02/12/2024 Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write 👁 cwe source acceptance level
NIST   CISA-ADP  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
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Change History

13 change records found show changes

CVE Modified by CISA-ADP 6/17/2026 2:02:47 AM

Action Type Old Value New Value
Added Affected 
[{"vendor":"vmware","product":"vcenter_server","defaultStatus":"unknown","cpes":["cpe:2.3:a:vmware:vcenter_server:7.0:-:*:*:*:*:*:*"],"versions":[{"version":"7.0","lessThan":"7.0U3o","versionType":"custom","status":"affected"}]},{"vendor":"vmware","product":"vcenter_server","defaultStatus":"unknown","cpes":["cpe:2.3:a:vmware:vcenter_server:8.0:-:*:*:*:*:*:*"],"versions":[{"version":"8.0","lessThan":"8.0U2","versionType":"custom","status":"affected"}]},{"vendor":"vmware","product":"cloud_foundation","defaultStatus":"unknown","cpes":["cpe:2.3:a:vmware:cloud_foundation:4.0:*:*:*:*:*:*:*"],"versions":[{"version":"4.0","lessThan":"KB88287","versionType":"custom","status":"affected"}]},{"vendor":"vmware","product":"cloud_foundation","defaultStatus":"unknown","cpes":["cpe:2.3:a:vmware:cloud_foundation:5.0:*:*:*:*:*:*:*"],"versions":[{"version":"5.0","lessThan":"KB88287","versionType":"custom","status":"affected"}]}]
Added SSVC 
{"timestamp":"2024-03-11T16:43:59.468773Z","id":"CVE-2023-34048","options":[{"exploitation":"active"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

CVE Modified by VMware 6/17/2026 2:02:47 AM

Action Type Old Value New Value
Added Affected 
[{"vendor":"VMware","product":"VMware vCenter Server","defaultStatus":"unaffected","platforms":["Linux"],"versions":[{"version":"8.0","lessThan":"8.0U2","versionType":"8.0U2","status":"affected"},{"version":"7.0","lessThan":"7.0U3o","versionType":"7.0U3o","status":"affected"}]},{"vendor":"VMware","product":"VMware Cloud Foundation (VMware vCenter Server)","defaultStatus":"unaffected","platforms":["Linux"],"versions":[{"version":"5.x","status":"affected"},{"version":"4.x","status":"affected"}]}]

Modified Analysis by NIST 10/30/2025 3:52:27 PM

Action Type Old Value New Value
Added Reference Type 
CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-34048 Types: US Government Resource

CVE Modified by CISA-ADP 10/21/2025 7:16:03 PM

Action Type Old Value New Value
Added Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-34048

CVE Modified by CISA-ADP 10/21/2025 4:19:33 PM

Action Type Old Value New Value
Removed Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-34048

CVE Modified by CISA-ADP 10/21/2025 3:20:08 PM

Action Type Old Value New Value
Added Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-34048

Modified Analysis by NIST 12/20/2024 12:41:40 PM

Action Type Old Value New Value
Changed Reference Type 
https://www.vicarius.io/vsociety/posts/understanding-cve-2023-34048-a-zero-day-out-of-bound-write-in-vcenter-server No Types Assigned


 
https://www.vicarius.io/vsociety/posts/understanding-cve-2023-34048-a-zero-day-out-of-bound-write-in-vcenter-server Exploit, Third Party Advisory

CVE Modified by CVE 11/21/2024 3:06:28 AM

Action Type Old Value New Value
Added Reference 
https://www.vicarius.io/vsociety/posts/understanding-cve-2023-34048-a-zero-day-out-of-bound-write-in-vcenter-server
Added Reference 
https://www.vmware.com/security/advisories/VMSA-2023-0023.html

Modified Analysis by NIST 8/14/2024 4:02:35 PM

Action Type Old Value New Value

CVE Modified by CISA-ADP 7/02/2024 9:40:09 PM

Action Type Old Value New Value
Added CWE 
CISA-ADP CWE-787

CVE Modified by VMware 5/14/2024 9:14:53 AM

Action Type Old Value New Value

CVE CISA KEV Update by Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government 1/22/2024 9:00:01 PM

Action Type Old Value New Value
Added Date Added 
2024-01-22
Added Due Date 
2024-02-12
Added Required Action 
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Added Vulnerability Name 
VMware vCenter Server Out-of-Bounds Write Vulnerability

Initial Analysis by NIST 10/31/2023 11:18:23 AM

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 CWE 
NIST CWE-787
Added CPE Configuration Record truncated, showing 2048 of 2309 characters.
View Entire Change Record
OR
 *cpe:2.3:a:vmware:vcenter_server:*:*:*:*:*:*:*:* versions from (including) 4.0 up to (including) 5.5
 *cpe:2.3:a:vmware:vcenter_server:7.0:-:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:a:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:b:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:c:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:d:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update1:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update1a:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update1c:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update1d:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update2:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update2a:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update2b:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update2c:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update2d:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3a:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3c:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3d:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3e:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3f:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3g:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3h:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3i:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3j:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3k:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3l:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3m:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:7.0:update3n:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:8.0:-:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:8.0:a:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:8.0:b:*:*:*:*:*:*
 *cpe:2.3:a:vmware:vcenter_server:8.0:c:*
Changed Reference Type 
https://www.vmware.com/security/advisories/VMSA-2023-0023.html No Types Assigned


 
https://www.vmware.com/security/advisories/VMSA-2023-0023.html Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2023-34048
NVD Published Date:
10/25/2023
NVD Last Modified:
06/17/2026
Source:
VMware