VULNERABILITY INTELLIGENCE

CVE-2026-24881

CVSS score9.8 CRITICAL

EPSS probability1.81%

CISA KEVNot currently listed

Published2026-01-27

Last modified2026-07-15

Description

In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized wrapped session key can cause a stack-based buffer overflow in gpg-agent during PKDECRYPT--kem=CMS handling. This can easily be leveraged for denial of service; however, there is also memory corruption that could lead to remote code execution.