CVE-2013-1738: Mozilla Firefox

High severity, CVSS 9.3. EPSS: 5.9% chance of exploitation in the next 30 days.

Use-after-free vulnerability in the JS_GetGlobalForScopeChain function in Mozilla Firefox before 24.0, Thunderbird before 24.0, and SeaMonkey before 2.21 allows remote attackers to execute arbitrary code by leveraging incorrect garbage collection in situations involving default compartments and frame-chain restoration.

Affected products

• Mozilla Firefox: up to and including 23.0.1; version 19.0 only; version 19.0.1 only; version 19.0.2 only; version 20.0 only; version 20.0.1 only; …
• Mozilla Seamonkey: up to and including 2.20; version 2.0 only; version 2.0.1 only; version 2.0.2 only; version 2.0.3 only; version 2.0.4 only; …
• Mozilla Thunderbird: up to and including 17.0.9; version 17.0 only; version 17.0.1 only; version 17.0.2 only; version 17.0.3 only; version 17.0.4 only; …

Published 2013-09-18. Last modified 2026-06-16.