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No exploitation reportedFix available

CVE-2020-25125

No exploitation reported by the sources we read.

  • Published2020-09-03
  • WeaknessCWE-120

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2020-09-0318:15CVE publishedNVD

Versions per branch

NVD
Gnupg
BranchAffectedFixed in
2.2= 2.2.21no fix published
2.2= 2.2.22no fix published
Gpg4win
BranchAffectedFixed in
3.1= 3.1.12no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • gnupgWolfiall versions · fixed in 0
  • gnupgCleanStartall versions · fixed in 2.2.23-r0
  • gnupgChainguardall versions · fixed in 0
  • gnupgAlpine:v3.24all versions · fixed in 2.2.23-r0
  • gnupgAlpine:v3.23all versions · fixed in 2.2.23-r0
  • gnupgAlpine:v3.22all versions · fixed in 2.2.23-r0
  • gnupgAlpine:v3.21all versions · fixed in 2.2.23-r0
  • gnupgAlpine:v3.20all versions · fixed in 2.2.23-r0

9 more package ranges on OSV.dev

Vendor advisories

  • CVE-2020-25125 Red Hat Product Security

    gnupg: AEAD preference list overflow

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2020-09-03
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-g8h3-hp92-c5qx

Frequently asked questions

What is CVE-2020-25125?

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.

Is CVE-2020-25125 actively exploited?

Active exploitation of CVE-2020-25125 has not been confirmed. Its EPSS score was 1.3% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-25125?

CVE-2020-25125 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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