CVE-2022-1097

Name: CVE-2022-1097
Creator: NVD / NIST
Published: 2022-12-22T20:15:12.897+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2022-1097 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. <code>NSSToken</code> objects were referenced via direct points, and could have been accessed in an unsafe way on different threads, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.. EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

<code>NSSToken</code> objects were referenced via direct points, and could have been accessed in an unsafe way on different threads, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

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

0.92%

55.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 99.0
Mozilla	Firefox Esr	< 91.8
Mozilla	Thunderbird	< 91.8

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1745667Exploit, Issue Tracking, Patch, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-13/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-14/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-15/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1745667Exploit, Issue Tracking, Patch, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-13/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-14/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-15/Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2022-1097?

How severe is CVE-2022-1097?

CVE-2022-1097 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2022-1097?

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-2022-1097?

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

Scan your code now

Source: NVD / NIST