CVEs-PoC/2025/CVE-2025-1933.md

CVE-2025-1933

Description

On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.

POC

Reference

• https://bugzilla.mozilla.org/show_bug.cgi?id=1946004

Github

• https://github.com/ARPSyndicate/cve-scores
• https://github.com/fkie-cad/nvd-json-data-feeds
• https://github.com/w4zu/Debian_security