CVE-2026-24883

5.5 mediumEPSS 0.5%

Medium (5.5). EPSS 0.5% chance of exploitation in the next 30 days.

In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with sig->data[] set to a NULL value, leading to a denial of service (application crash).

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2026-01-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

gnupg:gnupg
gpg4win:gpg4win

References

https://dev.gnupg.org/T8049
https://www.openwall.com/lists/oss-security/2026/01/27/8

Check your stack JSON