CVE-2022-45412

Name: CVE-2022-45412
Creator: NVD / NIST
Published: 2022-12-22T20:15:43.5+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.79%

Last modified Jun 17, 2026

CVE-2022-45412 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. When resolving a symlink such as <code>file:///proc/self/fd/1</code>, an error message may be produced where the symlink was resolved to a string containing unitialized memory in the buffer. <br>*This bug only affects Thunderbird on Unix-based operated systems (Android, Linux, MacOS). EPSS estimates a 0.79% chance of exploitation in the next 30 days.

Description

When resolving a symlink such as <code>file:///proc/self/fd/1</code>, an error message may be produced where the symlink was resolved to a string containing unitialized memory in the buffer. <br>*This bug only affects Thunderbird on Unix-based operated systems (Android, Linux, MacOS). Windows is unaffected.*. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.79%

51.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 107.0
Mozilla	Firefox Esr	< 102.5
Mozilla	Thunderbird	< 102.5

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1791029Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-47/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-48/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-49/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1791029Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-47/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-48/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-49/Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2022-45412?

How severe is CVE-2022-45412?

CVE-2022-45412 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.79% probability of exploitation in the next 30 days.

How do I fix CVE-2022-45412?

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-2022-45412?

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

Scan your code now

Source: NVD / NIST