CVE-2022-1802

Description

If an attacker was able to corrupt the methods of an Array object in JavaScript via prototype pollution, they could have achieved execution of attacker-controlled JavaScript code in a privileged context. This vulnerability affects Firefox ESR < 91.9.1, Firefox < 100.0.2, Firefox for Android < 100.3.0, and Thunderbird < 91.9.1.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 70.09% Top 5%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox
Affected: Mozilla Firefox for Android
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2022-19/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1770137 issue tracking permissions required vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-1802?
CVE-2022-1802 has been scored as a high severity vulnerability.
How to fix CVE-2022-1802?
To fix CVE-2022-1802, 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-2022-1802 being actively exploited in the wild?
It is possible that CVE-2022-1802 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~70% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-1802?
CVE-2022-1802 affects Mozilla Firefox ESR, Mozilla Firefox, Mozilla Firefox for Android, Mozilla Thunderbird.
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