Out-of-bounds Write Affecting thunderbird package, versions [,136)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-THUNDERBIRD-9376951
- 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)How to fix?
Upgrade thunderbird 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.