CVE-2010-2074: w3m

Medium severity, CVSS 6.8. EPSS: 1.5% chance of exploitation in the next 30 days.

istream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled, does not properly handle a '\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name 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.

Affected products

• w3m w3m: version 0.5.2 only

Published 2010-06-16. Last modified 2026-06-16.