CVE-2022-1529
An attacker could have sent a message to the parent process where the contents were used to double-index into a JavaScript object, leading to prototype...
- Published
- Dec 22, 2022
- Updated
- Apr 16, 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
- 97.0%
- Model date
- Oct 15, 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
An attacker could have sent a message to the parent process where the contents were used to double-index into a JavaScript object, leading to prototype pollution and ultimately attacker-controlled JavaScript executing in the privileged parent process. This vulnerability affects Firefox ESR < 91.9.1, Firefox < 100.0.2, Firefox for Android < 100.3.0, and Thunderbird < 91.9.1.
Sources
Proof-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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