CVE-2026-57062

2.9 lowEPSS 0.1%

Low (2.9). EPSS 0.1% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

2.9 low

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.1% chance of exploitation in the next 30 days; higher than 4% of CVEs (scores of 2026-10-31)
CWE: CWE-1284
Published: 2026-06-23
Modified: 2026-06-25
Record from: the NVD, synced 2026-10-19

References

https://blog.calif.io/p/how-to-format-a-ciphertext
https://www.gnupg.org/download/

Check your stack JSON