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cve/2021/CVE-2021-23997.md
0xMarcio cb00e1339f Update CVE list 2025-09-29 21:09
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CVE-2021-23997

Description

Due to unexpected data type conversions, a use-after-free could have occurred when interacting with the font cache. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88.

POC

Reference

Github

No PoCs found on GitHub currently.