CVE-2026-57062
2.9
LOW
CVSS 3.1
EPSS 0.11%
Description
CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM because aes-ICVlen is supposed to be 12 bytes but 4 bytes is accepted. NOTE: this is related to CVE-2026-34182.
How to fix CVE-2026-57062
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- Debian/gnupg2—no fix listed
Is CVE-2026-57062 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW2.9 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N |