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CVE-2013-4351

MEDIUM · CVSS 5.8EPSS 2.5%EU EUVD

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.

Key facts

CVSS score
5.8 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:N
Weakness (CWE)
CWE-310
EPSS score
2.5% (85th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2013-4235)
Published
October 10, 2013
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-4235 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg
  • gnupg / gnupg

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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