CVE-2009-2664: Mozilla Firefox

Medium severity, CVSS 5.0. EPSS: 2.8% chance of exploitation in the next 30 days.

The js_watch_set function in js/src/jsdbgapi.cpp in the JavaScript engine in Mozilla Firefox before 3.0.12 allows remote attackers to cause a denial of service (assertion failure and application exit) or possibly execute arbitrary code via a crafted .js file, related to a "memory safety bug." NOTE: this was originally reported as affecting versions before 3.0.13.

Affected products

• Mozilla Firefox: up to and including 3.5.1; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2009-08-04. Last modified 2026-06-16.