CVE-2026-24883

EUVD-2026-4770
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).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
3.7 LOW
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
mitreCNA
3.7 LOW
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 1%
Affected Products (NVD)
VendorProductVersion
gnupggnupg
2.5.13 ≤
𝑥
< 2.5.17
gpg4wingpg4win
5.0.0 ≤
𝑥
< 5.0.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
gnupg2
bookworm
2.2.40-1.1+deb12u2
fixed
bullseye
2.2.27-2+deb11u2
fixed
bullseye (security)
2.2.27-2+deb11u3
fixed
forky
2.4.8-5
fixed
sid
2.4.8-5
fixed
trixie
2.4.7-21+deb13u1
fixed
Common Weakness Enumeration
References
https://dev.gnupg.org/T8049
https://www.openwall.com/lists/oss-security/2026/01/27/8