Out-of-bounds Write Affecting Firefox package, versions [,136)
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Test your applications- Snyk IDSNYK-UNMANAGED-FIREFOX-9376949
- published10 Mar 2025
- disclosed4 Mar 2025
- creditXiangwei Zhang and kkdong of Tencent Security YUNDING LAB
Introduced: 4 Mar 2025
NewCVE-2025-1933 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade Firefox to version 136 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write due to the mishandling of WASM i32 return values during JIT compilation on 64-bit CPUs. An attacker can manipulate memory and potentially cause incorrect data types to be used by exploiting leftover memory bits.