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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…
High7.8EPSS 0.15%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.)
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| mitreCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N |
| NVDNVD · Modified | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.15% · top 96% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: total
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
References (9)
- https://gpg.fail/memcpy (opens in a new tab)exploit
- https://news.ycombinator.com/item?id=46403200 (opens in a new tab)
- https://www.openwall.com/lists/oss-security/2025/12/28/5 (opens in a new tab)
- https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9 (opens in a new tab)
- https://github.com/gpg/gnupg/blob/ff30683418695f5d2cc9e6cf8c9418e09378ebe4/g10/armor.c#L1305-L1306 (opens in a new tab)
- https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51 (opens in a new tab)
- https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i (opens in a new tab)
- http://www.openwall.com/lists/oss-security/2025/12/29/11 (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2026/01/msg00008.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-68973)Record last updated .