CVE-2010-3171: Mozilla Firefox

Medium severity, CVSS 5.8. EPSS: 4.5% chance of exploitation in the next 30 days.

The Math.random function in the JavaScript implementation in Mozilla Firefox 3.5.10 through 3.5.11, 3.6.4 through 3.6.8, and 4.0 Beta1 uses a random number generator that is seeded only once per document object, which makes it easier for remote attackers to track a user, or trick a user into acting upon a spoofed pop-up message, by calculating the seed value, related to a "temporary footprint" and an "in-session phishing attack." NOTE: this vulnerability exists because of an incorrect fix for CVE-2008-5913.

Affected products

• Mozilla Firefox: version 3.5.10 only; version 3.5.11 only; version 3.6.4 only; version 3.6.6 only; version 3.6.7 only; version 3.6.8 only; …

Published 2010-09-15. Last modified 2026-06-16.