CVE-2012-1943: Mozilla Firefox

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

Untrusted search path vulnerability in Updater.exe in the Windows Updater Service in Mozilla Firefox 12.0, Thunderbird 12.0, and SeaMonkey 2.9 on Windows allows local users to gain privileges via a Trojan horse wsock32.dll file in an application directory.

Affected products

• Mozilla Firefox: version 12.0 only
• Mozilla Seamonkey: version 2.9 only
• Mozilla Thunderbird: version 12.0 only

Published 2012-06-05. Last modified 2026-06-16.