CVE-2025-68973
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.1%
exploitation probability
0.1%top 97% of all CVEs
observed exploitation
nono source reports it
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.)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Affected products
GnuPG · GnuPGReferences
https://github.com/gpg/gnupg/blob/ff30683418695f5d2cc9e6cf8c9418e09378ebe4/g10/armor.c#L1305-L1306https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51https://gpg.fail/memcpyhttps://lists.debian.org/debian-lts-announce/2026/01/msg00008.htmlhttps://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-ihttps://news.ycombinator.com/item?id=46403200https://www.openwall.com/lists/oss-security/2025/12/28/5http://www.openwall.com/lists/oss-security/2025/12/29/11