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).

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History

Fri, 06 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
First Time appeared Gpg4win
Gpg4win gpg4win
CPEs cpe:2.3:a:gnupg:gnupg:*:*:*:*:-:*:*:*
cpe:2.3:a:gpg4win:gpg4win:*:*:*:*:*:*:*:*
Vendors & Products Gpg4win
Gpg4win gpg4win

Wed, 28 Jan 2026 16:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:*

Wed, 28 Jan 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Gnupg
Gnupg gnupg
Vendors & Products Gnupg
Gnupg gnupg

Wed, 28 Jan 2026 12:15:00 +0000

Type Values Removed Values Added
Title GnuPG: GnuPG: Denial of service due to specially crafted signature packet
References
Metrics threat_severity

None

threat_severity

Low


Tue, 27 Jan 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 27 Jan 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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).
Weaknesses CWE-476
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-01-28T15:52:11.076Z

Reserved: 2026-01-27T18:43:18.620Z

Link: CVE-2026-24883

cve-icon Vulnrichment

Updated: 2026-01-27T20:02:29.427Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-27T19:16:16.823

Modified: 2026-02-06T18:06:07.760

Link: CVE-2026-24883

cve-icon Redhat

Severity : Low

Publid Date: 2026-01-27T18:43:18Z

Links: CVE-2026-24883 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-01-28T12:22:11Z

Weaknesses