Vulnerability · Published Jan 27, 2026 · Assigned by mitre
CVE-2026-24883
Low 3.7
In plain English
A low-severity null pointer dereference in GnuPG from GnuPG. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).
Severity (CVSS 3.1)3.7Low
Exploit odds (30 days)0.5%top 57.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | gnupg2 | no fix listed | DEBIAN-CVE-2026-24883 |
| Debian:13 | gnupg2 | no fix listed | DEBIAN-CVE-2026-24883 |
| Debian:14 | gnupg2 | no fix listed | DEBIAN-CVE-2026-24883 |
Affected products (as reported)
Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L