CVE-2022-2200
If an object prototype was corrupted by an attacker, they would have been able to set undesired attributes on a JavaScript object, leading to privileged...
- Published
- Dec 22, 2022
- Updated
- Apr 15, 2025
- Assigning CNA
- mozilla
- Evidence observed
- Aug 27, 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
- 97.8%
- 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 object prototype was corrupted by an attacker, they would have been able to set undesired attributes on a JavaScript object, leading to privileged code execution. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.
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.
Responsible use
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