CVE-2022-22738

Public Exploit

Description

Applying a CSS filter effect could have accessed out of bounds memory. This could have lead to a heap-buffer-overflow causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.18%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2022-01/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-02/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-03/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1742382 vendor advisory issue tracking exploit

Frequently Asked Questions

What is the severity of CVE-2022-22738?
CVE-2022-22738 has been scored as a high severity vulnerability.
How to fix CVE-2022-22738?
To fix CVE-2022-22738, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-22738 being actively exploited in the wild?
It is possible that CVE-2022-22738 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-22738?
CVE-2022-22738 affects Mozilla Firefox ESR, Mozilla Firefox, Mozilla Thunderbird.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.