CVE-2012-4187 | Mozilla Firefox/Thunderbird 15 insPos memory corruption (MFSA 2012-86 / Nessus ID 62484)
A vulnerability classified as critical was found in Mozilla Firefox and Thunderbird 15. Affected by this vulnerability is an unknown functionality. The manipulation of the argument insPos leads to memory corruption.
This vulnerability is known as CVE-2012-4187. The attack can be launched remotely. There is no exploit available.
It is recommended to apply the suggested workaround.