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CVSS v3.1
2.7
EPSS
0.18%
Published
Mar 19, 2025
Modified
Oct 16, 2025
Public PoC / Exploit (1)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
Description
In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS."
CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:LWeaknesses (CWE)
References (3)