CVE-2014-1544: Mozilla Firefox

High severity, CVSS 10.0. EPSS: 6.1% chance of exploitation in the next 30 days.

Use-after-free vulnerability in the CERT_DestroyCertificate function in libnss3.so in Mozilla Network Security Services (NSS) 3.x, as used in Firefox before 31.0, Firefox ESR 24.x before 24.7, and Thunderbird before 24.7, allows remote attackers to execute arbitrary code via vectors that trigger certain improper removal of an NSSCertificate structure from a trust domain.

Affected products

• Mozilla Firefox: up to and including 30.0; version 24.0 only; version 24.0.1 only; version 24.0.2 only; version 24.1.0 only; version 24.1.1 only
• Mozilla Firefox ESR: version 24.2 only; version 24.3 only; version 24.4 only; version 24.5 only; version 24.6 only
• Mozilla Network Security Services: version 3.2 only; version 3.2.1 only; version 3.3 only; version 3.3.1 only; version 3.3.2 only; version 3.4 only; …
• Mozilla Thunderbird: up to and including 24.6; version 24.0 only; version 24.0.1 only; version 24.1 only; version 24.1.1 only; version 24.2 only; …

Published 2014-07-23. Last modified 2026-06-17.