AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2009-3765

MEDIUM · CVSS 6.8 EPSS 1.08%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-10-23 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.8. It affects OpenSSL.

CVE
CVE-2009-3765
Severity
MEDIUM
CVSS
6.8
EPSS
1.08%
OpenSSL

Original NVD Description

mutt_ssl.c in mutt 1.5.19 and 1.5.20, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.