CVE-2012-3993 Privilege escalation in n/a

What is CVE-2012-3993?

CVE-2012-3993 is a critical vulnerability in Mozilla Firefox, published on 10 Oct 2012. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 does not properly interact with failures of InstallTrigger methods, which allows remote attackers to execute arbitrary JavaScript code with chrome privileges via a crafted web site, related to an "XrayWrapper pollution" issue.

Weakness: CWE-269

Which versions are affected by CVE-2012-3993?

It affects 4 products.

Products include Mozilla Firefox, Mozilla Seamonkey, Mozilla Thunderbird, Mozilla Thunderbird Esr.

How do I fix CVE-2012-3993?

Upgrade to a fixed version.

Is CVE-2012-3993 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-3993 exists.

Public exploit code: 1 Metasploit module and 1 Exploit-DB entry.

Other vulnerabilities in Mozilla Firefox

• CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Exploited Critical 10.0
• CVE-2010-3765 Mozilla Multiple Products Remote Code Execution Exploited Critical 9.8
• CVE-2022-26486 Mozilla Firefox Use-After-Free Exploited Critical 9.6
• CVE-2022-26485 Mozilla Firefox Use-After-Free Exploited High 8.8
• CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Exploited High 8.8

All Mozilla Firefox vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-3587-g6j7-969g.