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CVE-2025-68973 Detail

Description

In GnuPG before 2.4.9, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input. (For ExtendedLTS, 2.2.51 and later are fixed versions.)


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:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://www.openwall.com/lists/oss-security/2025/12/29/11 CVE Mailing List  Patch 
https://github.com/gpg/gnupg/blob/ff30683418695f5d2cc9e6cf8c9418e09378ebe4/g10/armor.c#L1305-L1306 MITRE Product 
https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9 MITRE Patch 
https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51 MITRE Patch 
https://gpg.fail/memcpy CISA-ADP, MITRE Broken Link 
https://lists.debian.org/debian-lts-announce/2026/01/msg00008.html CVE
https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i MITRE Issue Tracking 
https://news.ycombinator.com/item?id=46403200 MITRE Issue Tracking 
https://www.openwall.com/lists/oss-security/2025/12/28/5 MITRE Mailing List 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST  
CWE-675 Multiple Operations on Resource in Single-Operation Context MITRE  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

8 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-68973
NVD Published Date:
12/28/2025
NVD Last Modified:
01/14/2026
Source:
MITRE