CVE-2022-22736 Privilege escalation in Firefox

What is CVE-2022-22736?

CVE-2022-22736 is a high-severity vulnerability in Mozilla Firefox, published on 22 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

If Firefox was installed to a world-writable directory, a local privilege escalation could occur when Firefox searched the current directory for system libraries. However the install directory is not world-writable by default.<br>*This bug only affects Firefox for Windows in a non-default installation. Other operating systems are unaffected.*. This vulnerability affects Firefox < 96.

Weakness: CWE-427

Which versions are affected by CVE-2022-22736?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2022-22736?

Upgrade to a fixed version.

Is CVE-2022-22736 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-22736 exists.

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-4qmj-r3wp-mpm8.