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cve/2021/CVE-2021-23960.md
0xMarcio cb00e1339f Update CVE list 2025-09-29 21:09
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CVE-2021-23960

Description

Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.

POC

Reference

Github

No PoCs found on GitHub currently.