Integer Overflow or Wraparound Affecting webkitgtk 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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- published23 Nov 2025
- disclosed20 Nov 2025
- creditGoogle Big Sleep
Introduced: 20 Nov 2025
CVE-2025-43429 (opens in a new tab)How to fix?
Upgrade webkitgtk to version 2.50.2 or higher.
Overview
Affected versions of this package are vulnerable to Integer Overflow or Wraparound via the normalize function in the StringPrototype component. An attacker can cause an unexpected process crash by processing maliciously crafted web content containing strings of length >= 1GB, which cause ICU buffer length calculations to overflow.