Uncaught Exception Affecting wpe_webkit package, versions [,2.50.2)
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-WPEWEBKIT-14101854
- published23 Nov 2025
- disclosed20 Nov 2025
- creditGary Kwong, rheza
Introduced: 20 Nov 2025
CVE-2025-43427 (opens in a new tab)How to fix?
Upgrade wpe_webkit to version 2.50.2 or higher.
Overview
Affected versions of this package are vulnerable to Uncaught Exception via the UnlinkedSimpleJumpTable::isList() method in the bytecode compiler. An attacker can cause a crash by crafting web content with switch statements that use INT32_MAX (2147483647) as a case value, which is incorrectly treated as a list-style jump table due to the previous check m_min == INT32_MAX.