CVE-2022-1802
If an attacker was able to corrupt the methods of an Array object in JavaScript via prototype pollution, they could have achieved execution of...
- Published
- Dec 22, 2022
- Updated
- Apr 16, 2025
- Assigning CNA
- mozilla
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HModerate · next 30 days
- Percentile
- 98.0%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1Proof-of-concept exploit code for Firefox CVEs (2022-1802, 1529, 2200) targeting version 100.0.1 on Windows, demonstrating browser vulnerability exploitation techniques.
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