VULNERABILITY INTELLIGENCE

CVE-2013-7440

CVSS score5.9 MEDIUM
EPSS probability1.88%
CISA KEVNot currently listed
Published2016-06-07
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3 does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate.

Primary references