Buffer overflow in Gnupg
CVE-2025-68973
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.)
EPSS: 0.001 (3.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N.
Affected products
- Gnupg — versions 0, 2.3.0
Weakness classification (CWE)
References
- cve@mitre.org (Broken Link)
- cve@mitre.org (Issue Tracking)
- cve@mitre.org (Mailing List)
- cve@mitre.org (Patch)
- cve@mitre.org (Product)
- cve@mitre.org (Patch)
- cve@mitre.org (Issue Tracking)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Patch)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2025-68973?
- CVE-2025-68973 is a high-severity vulnerability in Gnupg, classified under CWE-675. CVSS score: 7.8/10. Published 2025-12-28.
- How severe is CVE-2025-68973?
- High severity. CVSS v3 base score is 7.8 out of 10.