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CVE-2025-1012

Description

A race during concurrent delazification could have led to a use-after-free. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.

POC

Reference

No PoCs from references.

Github

- https://github.com/5211-yx/javascript_fuzzer

- https://github.com/googleprojectzero/fuzzilli

- https://github.com/w4zu/Debian_security