CVE-2014-8642: Mozilla Firefox

Medium severity, CVSS 4.3. EPSS: 1.5% chance of exploitation in the next 30 days.

Mozilla Firefox before 35.0 and SeaMonkey before 2.32 do not consider the id-pkix-ocsp-nocheck extension in deciding whether to trust an OCSP responder, which makes it easier for remote attackers to obtain sensitive information by sniffing the network during a session in which there was an incorrect decision to accept a compromised and revoked certificate.

Affected products

• Mozilla Firefox: up to and including 34.0.5
• Mozilla Seamonkey: up to and including 2.31
• Opensuse Opensuse: version 13.1 only; version 13.2 only

Published 2015-01-14. Last modified 2026-06-17.