CVE-2026-24881 (GCVE-0-2026-24881)

Vulnerability from cvelistv5 – Published: 2026-01-27 18:36 – Updated: 2026-01-27 20:08
VLAI?
Summary
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.
Severity ?
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
GnuPG GnuPG Affected: 2.5.13 , < 2.5.17 (semver)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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