CVE-2015-7182: Mozilla Firefox

Critical severity, CVSS 9.8. EPSS: 10.2% chance of exploitation in the next 30 days.

Heap-based buffer overflow in the ASN.1 decoder in Mozilla Network Security Services (NSS) before 3.19.2.1 and 3.20.x before 3.20.1, as used in Firefox before 42.0 and Firefox ESR 38.x before 38.4 and other products, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted OCTET STRING data.

Affected products

• Mozilla Firefox: version 38.0 only; version 38.0.1 only; version 38.0.5 only; version 38.1.0 only; version 38.1.1 only; version 38.2.0 only; …
• Mozilla Network Security Services: up to and including 3.19.2.0; version 3.20.0 only
• Oracle Glassfish Server: version 2.1.1 only
• Oracle Iplanet Web Proxy Server: version 4.0 only
• Oracle Iplanet Web Server: version 7.0 only
• Oracle Opensso: version 3.0-0.7 only
• Oracle Traffic Director: version 11.1.1.7.0 only; version 11.1.1.9.0 only

Published 2015-11-05. Last modified 2026-06-17.