CVE-2022-22739

Public Exploit

Description

Malicious websites could have tricked users into accepting launching a program to handle an external URL protocol. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

6.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.13%

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

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=1744158	issue tracking exploit vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-22739?: CVE-2022-22739 has been scored as a medium severity vulnerability.
How to fix CVE-2022-22739?: To fix CVE-2022-22739, 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-2022-22739 being actively exploited in the wild?: It is possible that CVE-2022-22739 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-2022-22739?: CVE-2022-22739 affects Mozilla Firefox ESR, Mozilla Firefox, Mozilla Thunderbird.

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