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Status published
High
CVE-2025-68973
In GnuPG before 2.4.9, armor_filter in g10/armor.c has two increments...
Vulnerability 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.)
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://gpg.fail/memcpy
- https://news.ycombinator.com/item?id=46403200
- https://www.openwall.com/lists/oss-security/2025/12/28/5
- https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9
- https://github.com/gpg/gnupg/blob/ff30683418695f5d2cc9e6cf8c9418e09378ebe4/g10/armor.c#L1305-L1306
- https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51
- https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i
Affected Vendor
GnuPG
View all reports →Affected Software
GnuPG
Vulnerable Versions:
0, 2.3.0
Timeline
Official Publish:
December 28th, 2025
Last Modified:
April 30th, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.