CVE-2020-25125

critical

Published — · Modified —

CVSS v3

—

CVSS v2

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VIR risk

9.5

Description

GnuPG 2.2.21 and 2.2.22 (and Gpg4win 3.1.12) has an array overflow, leading to a crash or possibly unspecified other impact, when a victim imports an attacker's OpenPGP key, and this key has AEAD preferences. The overflow is caused by a g10/key-check.c error. NOTE: GnuPG 2.3.x is unaffected. GnuPG 2.2.23 is a fixed version.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-25125

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-202009-5

OS impact

OS	Version	Status	Fixed in
arch		fixed	`2.2.23-1`
debian	bookworm	fixed	`0`
debian	bullseye	fixed	`0`
debian	forky	fixed	`0`
debian	sid	fixed	`0`
debian	trixie	fixed	`0`

References

https://security.archlinux.org/ASA-202009-5
https://security-tracker.debian.org/tracker/CVE-2020-25125

Verify integrity in audit chain (admin only). AS-IS.