CVE-2013-1672: Mozilla Firefox

Medium severity, CVSS 6.9. EPSS: 0.3% chance of exploitation in the next 30 days.

The Mozilla Maintenance Service in Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 on Windows allows local users to bypass integrity verification and gain privileges via vectors involving junctions.

Affected products

• Mozilla Firefox: up to and including 20.0.1; version 19.0 only; version 19.0.1 only; version 19.0.2 only; version 20.0 only; version 17.0 only; …
• Mozilla Thunderbird: up to and including 17.0.5; version 17.0 only; version 17.0.1 only; version 17.0.2 only; version 17.0.3 only; version 17.0.4 only
• Mozilla Thunderbird ESR: up to and including 17.0.5; 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 2013-05-16. Last modified 2026-06-16.