What’s Vulnerable › Vulnerabilities

CVE-2020-25125

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-09-03 · updated 2026-06-17
• Weakness: CWE-120

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.

Affected products

• GnuPG: 2.2.21, 2.2.22
• Gpg4Win: 3.1.12

References

• http://www.openwall.com/lists/oss-security/2020/09/03/4
• http://www.openwall.com/lists/oss-security/2020/09/03/5
• https://bugzilla.opensuse.org/show_bug.cgi?id=1176034
• https://dev.gnupg.org/T5050
• https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc
• https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html
• http://www.openwall.com/lists/oss-security/2020/09/03/4
• http://www.openwall.com/lists/oss-security/2020/09/03/5
• https://bugzilla.opensuse.org/show_bug.cgi?id=1176034
• https://dev.gnupg.org/T5050
• https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc
• https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html

Get alerted when CVE-2020-25125 or the next vulnerability affects your stack