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URL: https://nvd.nist.gov/vuln/detail/CVE-2021-30858

⇱ NVD - CVE-2021-30858

  1. Vulnerabilities

CVE-2021-30858 Detail

Description

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.


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)
http://seclists.org/fulldisclosure/2021/Sep/25 Apple Inc., CVE Mailing List  Third Party Advisory 
http://seclists.org/fulldisclosure/2021/Sep/27 Apple Inc., CVE Mailing List  Third Party Advisory 
http://seclists.org/fulldisclosure/2021/Sep/29 Apple Inc., CVE Mailing List  Third Party Advisory 
http://seclists.org/fulldisclosure/2021/Sep/38 Apple Inc., CVE Mailing List  Third Party Advisory 
http://seclists.org/fulldisclosure/2021/Sep/39 Apple Inc., CVE Mailing List  Third Party Advisory 
http://seclists.org/fulldisclosure/2021/Sep/50 Apple Inc., CVE Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2021/09/20/1 Apple Inc., CVE Mailing List 
http://www.openwall.com/lists/oss-security/2021/10/26/9 Apple Inc., CVE Mailing List 
http://www.openwall.com/lists/oss-security/2021/10/27/1 Apple Inc., CVE Mailing List 
http://www.openwall.com/lists/oss-security/2021/10/27/2 Apple Inc., CVE Mailing List 
http://www.openwall.com/lists/oss-security/2021/10/27/4 Apple Inc., CVE Mailing List 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO6DMTHZR57JDBOXPSNR2MKDMCRWV265/ Apple Inc., CVE Release Notes 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XYNV7ASK4LQVAUMJXNXBS3Z7RVDQ2N3W/ Apple Inc., CVE Release Notes 
https://support.apple.com/en-us/HT212804 Apple Inc., CVE Third Party Advisory 
https://support.apple.com/en-us/HT212807 Apple Inc., CVE Third Party Advisory 
https://support.apple.com/kb/HT212824 Apple Inc., CVE Third Party Advisory 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30858 CISA-ADP US Government Resource 
https://www.debian.org/security/2021/dsa-4975 Apple Inc., CVE Mailing List  Third Party Advisory 
https://www.debian.org/security/2021/dsa-4976 Apple Inc., CVE Mailing List  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
Apple iOS, iPadOS, macOS Use-After-Free Vulnerability 11/03/2021 11/17/2021 Apply updates per vendor instructions.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free 👁 cwe source acceptance level
NIST   CISA-ADP  

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

30 change records found show changes

CVE Modified by CISA-ADP 6/16/2026 11:51:01 PM

Action Type Old Value New Value
Added SSVC 
{"timestamp":"2025-01-29T17:31:17.221055Z","id":"CVE-2021-30858","options":[{"exploitation":"active"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

CVE Modified by Apple Inc. 6/16/2026 11:51:01 PM

Action Type Old Value New Value
Added Affected 
[{"vendor":"Apple","product":"macOS","versions":[{"version":"unspecified","lessThan":"11.6","versionType":"custom","status":"affected"}]},{"vendor":"Apple","product":"iOS","versions":[{"version":"unspecified","lessThan":"14.8","versionType":"custom","status":"affected"}]}]

Modified Analysis by NIST 10/27/2025 1:38:33 PM

Action Type Old Value New Value
Added Reference Type 
CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30858 Types: US Government Resource

CVE Modified by CISA-ADP 10/21/2025 8:17:33 PM

Action Type Old Value New Value
Added Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30858

CVE Modified by CISA-ADP 10/21/2025 4:18:33 PM

Action Type Old Value New Value
Removed Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30858

CVE Modified by CISA-ADP 10/21/2025 3:19:03 PM

Action Type Old Value New Value
Added Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30858

Modified Analysis by NIST 4/02/2025 12:58:58 PM

Action Type Old Value New Value

CVE Modified by CISA-ADP 1/29/2025 1:15:42 PM

Action Type Old Value New Value
Added CVSS V3.1 
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Added CWE 
CWE-416

CVE Modified by CVE 11/21/2024 1:04:51 AM

Action Type Old Value New Value
Added Reference 
http://seclists.org/fulldisclosure/2021/Sep/25
Added Reference 
http://seclists.org/fulldisclosure/2021/Sep/27
Added Reference 
http://seclists.org/fulldisclosure/2021/Sep/29
Added Reference 
http://seclists.org/fulldisclosure/2021/Sep/38
Added Reference 
http://seclists.org/fulldisclosure/2021/Sep/39
Added Reference 
http://seclists.org/fulldisclosure/2021/Sep/50
Added Reference 
http://www.openwall.com/lists/oss-security/2021/09/20/1
Added Reference 
http://www.openwall.com/lists/oss-security/2021/10/26/9
Added Reference 
http://www.openwall.com/lists/oss-security/2021/10/27/1
Added Reference 
http://www.openwall.com/lists/oss-security/2021/10/27/2
Added Reference 
http://www.openwall.com/lists/oss-security/2021/10/27/4
Added Reference 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO6DMTHZR57JDBOXPSNR2MKDMCRWV265/
Added Reference 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XYNV7ASK4LQVAUMJXNXBS3Z7RVDQ2N3W/
Added Reference 
https://support.apple.com/en-us/HT212804
Added Reference 
https://support.apple.com/en-us/HT212807
Added Reference 
https://support.apple.com/kb/HT212824
Added Reference 
https://www.debian.org/security/2021/dsa-4975
Added Reference 
https://www.debian.org/security/2021/dsa-4976

Modified Analysis by NIST 7/29/2024 2:30:12 PM

Action Type Old Value New Value
Changed Reference Type 
http://seclists.org/fulldisclosure/2021/Sep/25 No Types Assigned


 
http://seclists.org/fulldisclosure/2021/Sep/25 Mailing List, Third Party Advisory
Changed Reference Type 
http://seclists.org/fulldisclosure/2021/Sep/27 No Types Assigned


 
http://seclists.org/fulldisclosure/2021/Sep/27 Mailing List, Third Party Advisory
Changed Reference Type 
http://seclists.org/fulldisclosure/2021/Sep/29 No Types Assigned


 
http://seclists.org/fulldisclosure/2021/Sep/29 Mailing List, Third Party Advisory
Changed Reference Type 
http://seclists.org/fulldisclosure/2021/Sep/38 No Types Assigned


 
http://seclists.org/fulldisclosure/2021/Sep/38 Mailing List, Third Party Advisory
Changed Reference Type 
http://seclists.org/fulldisclosure/2021/Sep/39 No Types Assigned


 
http://seclists.org/fulldisclosure/2021/Sep/39 Mailing List, Third Party Advisory
Changed Reference Type 
http://seclists.org/fulldisclosure/2021/Sep/50 No Types Assigned


 
http://seclists.org/fulldisclosure/2021/Sep/50 Mailing List, Third Party Advisory
Changed Reference Type 
http://www.openwall.com/lists/oss-security/2021/09/20/1 No Types Assigned


 
http://www.openwall.com/lists/oss-security/2021/09/20/1 Mailing List
Changed Reference Type 
http://www.openwall.com/lists/oss-security/2021/10/26/9 No Types Assigned


 
http://www.openwall.com/lists/oss-security/2021/10/26/9 Mailing List
Changed Reference Type 
http://www.openwall.com/lists/oss-security/2021/10/27/1 No Types Assigned


 
http://www.openwall.com/lists/oss-security/2021/10/27/1 Mailing List
Changed Reference Type 
http://www.openwall.com/lists/oss-security/2021/10/27/2 No Types Assigned


 
http://www.openwall.com/lists/oss-security/2021/10/27/2 Mailing List
Changed Reference Type 
http://www.openwall.com/lists/oss-security/2021/10/27/4 No Types Assigned


 
http://www.openwall.com/lists/oss-security/2021/10/27/4 Mailing List
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO6DMTHZR57JDBOXPSNR2MKDMCRWV265/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO6DMTHZR57JDBOXPSNR2MKDMCRWV265/ Release Notes
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XYNV7ASK4LQVAUMJXNXBS3Z7RVDQ2N3W/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XYNV7ASK4LQVAUMJXNXBS3Z7RVDQ2N3W/ Release Notes
Changed Reference Type 
https://support.apple.com/en-us/HT212804 No Types Assigned


 
https://support.apple.com/en-us/HT212804 Third Party Advisory
Changed Reference Type 
https://support.apple.com/en-us/HT212807 No Types Assigned


 
https://support.apple.com/en-us/HT212807 Third Party Advisory
Changed Reference Type 
https://support.apple.com/kb/HT212824 No Types Assigned


 
https://support.apple.com/kb/HT212824 Third Party Advisory
Changed Reference Type 
https://www.debian.org/security/2021/dsa-4975 No Types Assigned


 
https://www.debian.org/security/2021/dsa-4975 Mailing List, Third Party Advisory
Changed Reference Type 
https://www.debian.org/security/2021/dsa-4976 No Types Assigned


 
https://www.debian.org/security/2021/dsa-4976 Mailing List, Third Party Advisory

CVE Modified by Apple Inc. 5/14/2024 4:58:24 AM

Action Type Old Value New Value

CVE Source Update by Apple Inc. 11/06/2023 10:33:33 PM

Action Type Old Value New Value
Changed Source 
MITRE


 
Apple Inc.

CVE Modified by Apple Inc. 11/06/2023 10:33:33 PM

Action Type Old Value New Value
Added Reference 
Apple Inc. http://seclists.org/fulldisclosure/2021/Sep/25 [No types assigned]
Added Reference 
Apple Inc. http://seclists.org/fulldisclosure/2021/Sep/27 [No types assigned]
Added Reference 
Apple Inc. http://seclists.org/fulldisclosure/2021/Sep/29 [No types assigned]
Added Reference 
Apple Inc. http://seclists.org/fulldisclosure/2021/Sep/38 [No types assigned]
Added Reference 
Apple Inc. http://seclists.org/fulldisclosure/2021/Sep/39 [No types assigned]
Added Reference 
Apple Inc. http://seclists.org/fulldisclosure/2021/Sep/50 [No types assigned]
Added Reference 
Apple Inc. http://www.openwall.com/lists/oss-security/2021/09/20/1 [No types assigned]
Added Reference 
Apple Inc. http://www.openwall.com/lists/oss-security/2021/10/26/9 [No types assigned]
Added Reference 
Apple Inc. http://www.openwall.com/lists/oss-security/2021/10/27/1 [No types assigned]
Added Reference 
Apple Inc. http://www.openwall.com/lists/oss-security/2021/10/27/2 [No types assigned]
Added Reference 
Apple Inc. http://www.openwall.com/lists/oss-security/2021/10/27/4 [No types assigned]
Added Reference 
Apple Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO6DMTHZR57JDBOXPSNR2MKDMCRWV265/ [No types assigned]
Added Reference 
Apple Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XYNV7ASK4LQVAUMJXNXBS3Z7RVDQ2N3W/ [No types assigned]
Added Reference 
Apple Inc. https://support.apple.com/en-us/HT212804 [No types assigned]
Added Reference 
Apple Inc. https://support.apple.com/en-us/HT212807 [No types assigned]
Added Reference 
Apple Inc. https://support.apple.com/kb/HT212824 [No types assigned]
Added Reference 
Apple Inc. https://www.debian.org/security/2021/dsa-4975 [No types assigned]
Added Reference 
Apple Inc. https://www.debian.org/security/2021/dsa-4976 [No types assigned]
Removed Reference 
MITRE http://seclists.org/fulldisclosure/2021/Sep/25
Removed Reference 
MITRE http://seclists.org/fulldisclosure/2021/Sep/27
Removed Reference 
MITRE http://seclists.org/fulldisclosure/2021/Sep/29
Removed Reference 
MITRE http://seclists.org/fulldisclosure/2021/Sep/38
Removed Reference 
MITRE http://seclists.org/fulldisclosure/2021/Sep/39
Removed Reference 
MITRE http://seclists.org/fulldisclosure/2021/Sep/50
Removed Reference 
MITRE http://www.openwall.com/lists/oss-security/2021/09/20/1
Removed Reference 
MITRE http://www.openwall.com/lists/oss-security/2021/10/26/9
Removed Reference 
MITRE http://www.openwall.com/lists/oss-security/2021/10/27/1
Removed Reference 
MITRE http://www.openwall.com/lists/oss-security/2021/10/27/2
Removed Reference 
MITRE http://www.openwall.com/lists/oss-security/2021/10/27/4
Removed Reference 
MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/BO6DMTHZR57JDBOXPSNR2MKDMCRWV265/
Removed Reference 
MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/XYNV7ASK4LQVAUMJXNXBS3Z7RVDQ2N3W/
Removed Reference 
MITRE https://support.apple.com/en-us/HT212804
Removed Reference 
MITRE https://support.apple.com/en-us/HT212807
Removed Reference 
MITRE https://support.apple.com/kb/HT212824
Removed Reference 
MITRE https://www.debian.org/security/2021/dsa-4975
Removed Reference 
MITRE https://www.debian.org/security/2021/dsa-4976

Modified Analysis by NIST 12/02/2021 9:27:20 PM

Action Type Old Value New Value
Changed CPE Configuration 
OR
 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 14.8
 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8
 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions up to (excluding) 11.6


 
OR
 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions from (including) 13.1 up to (excluding) 14.8
 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 12.5.5
 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 14.8
 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions up to (excluding) 11.6
Added CPE Configuration 
OR
 *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:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
 *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Changed Reference Type 
http://seclists.org/fulldisclosure/2021/Sep/25 No Types Assigned


 
http://seclists.org/fulldisclosure/2021/Sep/25 Mailing List, Third Party Advisory
Changed Reference Type 
http://seclists.org/fulldisclosure/2021/Sep/27 No Types Assigned


 
http://seclists.org/fulldisclosure/2021/Sep/27 Mailing List, Third Party Advisory
Changed Reference Type 
http://seclists.org/fulldisclosure/2021/Sep/29 No Types Assigned


 
http://seclists.org/fulldisclosure/2021/Sep/29 Mailing List, Third Party Advisory
Changed Reference Type 
http://seclists.org/fulldisclosure/2021/Sep/38 No Types Assigned


 
http://seclists.org/fulldisclosure/2021/Sep/38 Mailing List, Third Party Advisory
Changed Reference Type 
http://seclists.org/fulldisclosure/2021/Sep/39 No Types Assigned


 
http://seclists.org/fulldisclosure/2021/Sep/39 Mailing List, Third Party Advisory
Changed Reference Type 
http://seclists.org/fulldisclosure/2021/Sep/50 No Types Assigned


 
http://seclists.org/fulldisclosure/2021/Sep/50 Mailing List, Third Party Advisory
Changed Reference Type 
http://www.openwall.com/lists/oss-security/2021/09/20/1 No Types Assigned


 
http://www.openwall.com/lists/oss-security/2021/09/20/1 Mailing List, Third Party Advisory
Changed Reference Type 
http://www.openwall.com/lists/oss-security/2021/10/26/9 No Types Assigned


 
http://www.openwall.com/lists/oss-security/2021/10/26/9 Mailing List, Third Party Advisory
Changed Reference Type 
http://www.openwall.com/lists/oss-security/2021/10/27/1 No Types Assigned


 
http://www.openwall.com/lists/oss-security/2021/10/27/1 Mailing List, Third Party Advisory
Changed Reference Type 
http://www.openwall.com/lists/oss-security/2021/10/27/2 No Types Assigned


 
http://www.openwall.com/lists/oss-security/2021/10/27/2 Mailing List, Third Party Advisory
Changed Reference Type 
http://www.openwall.com/lists/oss-security/2021/10/27/4 No Types Assigned


 
http://www.openwall.com/lists/oss-security/2021/10/27/4 Mailing List, Third Party Advisory
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/[email protected]/message/BO6DMTHZR57JDBOXPSNR2MKDMCRWV265/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/[email protected]/message/BO6DMTHZR57JDBOXPSNR2MKDMCRWV265/ Mailing List, Third Party Advisory
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/[email protected]/message/XYNV7ASK4LQVAUMJXNXBS3Z7RVDQ2N3W/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/[email protected]/message/XYNV7ASK4LQVAUMJXNXBS3Z7RVDQ2N3W/ Mailing List, Third Party Advisory
Changed Reference Type 
https://support.apple.com/kb/HT212824 No Types Assigned


 
https://support.apple.com/kb/HT212824 Third Party Advisory
Changed Reference Type 
https://www.debian.org/security/2021/dsa-4975 No Types Assigned


 
https://www.debian.org/security/2021/dsa-4975 Third Party Advisory
Changed Reference Type 
https://www.debian.org/security/2021/dsa-4976 No Types Assigned


 
https://www.debian.org/security/2021/dsa-4976 Third Party Advisory

CVE Modified by MITRE 10/27/2021 5:15:07 PM

Action Type Old Value New Value
Added Reference 
http://www.openwall.com/lists/oss-security/2021/10/27/4 [No Types Assigned]

CVE Modified by MITRE 10/27/2021 11:15:07 AM

Action Type Old Value New Value
Added Reference 
http://www.openwall.com/lists/oss-security/2021/10/27/2 [No Types Assigned]

CVE Modified by MITRE 10/27/2021 2:15:07 AM

Action Type Old Value New Value
Added Reference 
http://www.openwall.com/lists/oss-security/2021/10/27/1 [No Types Assigned]

CVE Modified by MITRE 10/26/2021 5:15:07 PM

Action Type Old Value New Value
Added Reference 
http://www.openwall.com/lists/oss-security/2021/10/26/9 [No Types Assigned]

CVE Modified by MITRE 10/03/2021 11:15:16 PM

Action Type Old Value New Value
Added Reference 
https://lists.fedoraproject.org/archives/list/[email protected]/message/XYNV7ASK4LQVAUMJXNXBS3Z7RVDQ2N3W/ [No Types Assigned]

CVE Modified by MITRE 9/24/2021 12:15:08 PM

Action Type Old Value New Value
Added Reference 
http://seclists.org/fulldisclosure/2021/Sep/50 [No Types Assigned]

CVE Modified by MITRE 9/23/2021 3:15:08 PM

Action Type Old Value New Value
Added Reference 
https://support.apple.com/kb/HT212824 [No Types Assigned]

CVE Modified by MITRE 9/22/2021 8:15:10 PM

Action Type Old Value New Value
Added Reference 
https://www.debian.org/security/2021/dsa-4975 [No Types Assigned]
Added Reference 
https://www.debian.org/security/2021/dsa-4976 [No Types Assigned]

CVE Modified by MITRE 9/21/2021 8:15:09 PM

Action Type Old Value New Value
Added Reference 
http://seclists.org/fulldisclosure/2021/Sep/38 [No Types Assigned]
Added Reference 
http://seclists.org/fulldisclosure/2021/Sep/39 [No Types Assigned]

CVE Modified by MITRE 9/21/2021 1:15:09 PM

Action Type Old Value New Value
Added Reference 
https://lists.fedoraproject.org/archives/list/[email protected]/message/BO6DMTHZR57JDBOXPSNR2MKDMCRWV265/ [No Types Assigned]

CVE Modified by MITRE 9/20/2021 11:15:08 AM

Action Type Old Value New Value
Added Reference 
http://www.openwall.com/lists/oss-security/2021/09/20/1 [No Types Assigned]

CVE Modified by MITRE 9/17/2021 6:15:07 PM

Action Type Old Value New Value
Added Reference 
http://seclists.org/fulldisclosure/2021/Sep/25 [No Types Assigned]
Added Reference 
http://seclists.org/fulldisclosure/2021/Sep/27 [No Types Assigned]
Added Reference 
http://seclists.org/fulldisclosure/2021/Sep/29 [No Types Assigned]

Initial Analysis by NIST 9/15/2021 8:55:06 AM

Action Type Old Value New Value
Added CVSS V3.1 
NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Added CVSS V2 
NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Added CWE 
NIST CWE-416
Added CPE Configuration 
OR
 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 14.8
 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8
 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions up to (excluding) 11.6
Changed Reference Type 
https://support.apple.com/en-us/HT212804 No Types Assigned


 
https://support.apple.com/en-us/HT212804 Release Notes, Vendor Advisory
Changed Reference Type 
https://support.apple.com/en-us/HT212807 No Types Assigned


 
https://support.apple.com/en-us/HT212807 Release Notes, Vendor Advisory
Added CVSS V2 Metadata 
Victim must voluntarily interact with attack mechanism

CVE Modified by MITRE 9/14/2021 11:15:07 AM

Action Type Old Value New Value
Changed Description 
** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by the CVE program. Notes: none.


 
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Added Reference 
https://support.apple.com/en-us/HT212804 [No Types Assigned]
Added Reference 
https://support.apple.com/en-us/HT212807 [No Types Assigned]

CVE Unrejected by MITRE 9/14/2021 11:15:07 AM

Action Type Old Value New Value

CVE Rejected by MITRE 8/24/2021 3:15:14 PM

Action Type Old Value New Value

Quick Info

CVE Dictionary Entry:
CVE-2021-30858
NVD Published Date:
08/24/2021
NVD Last Modified:
06/16/2026
Source:
Apple Inc.