CVE-2025-68973In 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…
- 7.8HighCVSS base score
- 0.15%Exploitation in 30 daysEPSS · top 96% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- YesPublic exploitsa reference or SSVC says so
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.)
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. A reference of the record is tagged as an exploit. CISA's SSVC rates its exploitation: a proof of concept is public.
Show the exploits1
References tagged exploit1 reference
Timeline
ID reserved
By mitre
Published
- 4 months later
· 4 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
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 (12 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
References
References9
- 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)
- EUVD EUVD-2025-205519 (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://cveledger.app/cve/CVE-2025-68973)Record last updated .