Vulnerability Database

300,214

Total vulnerabilities in the database

CVE-2016-4456

The "GNUTLS_KEYLOGFILE" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.

  • Published: Aug 8, 2017
  • Updated: Nov 9, 2025
  • CVE: CVE-2016-4456
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:P/A:N

CWEs:

Software From Fixed in
gnu / gnutls 3.4.12 3.4.12.x