CVE-2022-22736

Name: CVE-2022-22736
Creator: NVD / NIST
Published: 2022-12-22T20:15:14.153+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2022-22736 is a high-severity vulnerability rated 7/10 on the CVSS scale. 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. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.24%

15.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 96.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1742692Exploit, Issue Tracking, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-01/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1742692Exploit, Issue Tracking, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-01/Vendor Advisory

Timeline

Published: Dec 22, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-22736?

How severe is CVE-2022-22736?

CVE-2022-22736 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2022-22736?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-22736?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST