CVE-2022-46880

Name: CVE-2022-46880
Creator: NVD / NIST
Published: 2022-12-22T20:15:47.333+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.65%

Last modified Jun 17, 2026

CVE-2022-46880 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A missing check related to tex units could have led to a use-after-free and potentially exploitable crash.<br />*Note*: This advisory was added on December 13th, 2022 after we better understood the impact of the issue. The fix was included in the original release of Firefox 105. EPSS estimates a 0.65% chance of exploitation in the next 30 days.

Description

A missing check related to tex units could have led to a use-after-free and potentially exploitable crash.<br />*Note*: This advisory was added on December 13th, 2022 after we better understood the impact of the issue. The fix was included in the original release of Firefox 105. This vulnerability affects Firefox ESR < 102.6, Firefox < 105, and Thunderbird < 102.6.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.65%

46.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 105.0
Mozilla	Firefox Esr	< 102.6
Mozilla	Thunderbird	< 102.6

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1749292Issue Tracking, Permissions Required
https://security.gentoo.org/glsa/202305-06
https://security.gentoo.org/glsa/202305-13
https://www.mozilla.org/security/advisories/mfsa2022-40/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-52/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-53/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1749292Issue Tracking, Permissions Required
https://security.gentoo.org/glsa/202305-06
https://security.gentoo.org/glsa/202305-13
https://www.mozilla.org/security/advisories/mfsa2022-40/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-52/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-53/Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2022-46880?

How severe is CVE-2022-46880?

CVE-2022-46880 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.65% probability of exploitation in the next 30 days.

How do I fix CVE-2022-46880?

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-2022-46880?

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

Scan your code now

Source: NVD / NIST