Vulnerability DatabaseCVE-2026-24883
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CVE-2026-24883
January 27, 2026
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).
Affected Packages
https://github.com/gpg/gnupg.git (GITHUB):
Affected version(s) >=gnupg-1.2.8 <gnupg-2.5.17
Fix Suggestion:
Update to version gnupg-2.5.17
Related Resources (2)
https://dev.gnupg.org/T8049
https://www.openwall.com/lists/oss-security/2026/01/27/8
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CVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
NULL Pointer Dereference
CWE-476
EPSS
Base Score:
0.01