CVE-2022-1802
8.8
HIGH
CVSS 3.1
EPSS 67.9%
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.
How to fix CVE-2022-1802
To remediate CVE-2022-1802, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 91.9.1esr-1~deb11u1 or later
- —upgrade to 1:91.10.0-1~deb11u1 or later
Is CVE-2022-1802 being exploited?
Likely — EPSS is 67.9%, placing CVE-2022-1802 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (2)
- from 0, < 91.9.1esr-1~deb11u1
- from 0, < 1:91.10.0-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |