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).
Scores
CVSS v3
3.7
EPSS
0.0001
EPSS Percentile
2.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-476
Status
published
Products (2)
gnupg/gnupg
2.5.13 - 2.5.17
gpg4win/gpg4win
5.0.0 - 5.0.1
Published
Jan 27, 2026
Tracked Since
Feb 18, 2026