VULNERABILITY INTELLIGENCE
CVE-2013-4351
CVSS score5.8 MEDIUM
EPSS probability2.52%
CISA KEVNot currently listed
Published2013-10-10
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:P/I:P/A:N
Description
GnuPG 1.4.x, 2.0.x, and 2.1.x treats a key flags subpacket with all bits cleared (no usage permitted) as if it has all bits set (all usage permitted), which might allow remote attackers to bypass intended cryptographic protection mechanisms by leveraging the subkey.