Out-of-Bounds Affecting Firefox package, versions [,140.0-beta1)
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-FIREFOX-10558100
- published27 Jun 2025
- disclosed24 Jun 2025
- creditAndrew McCreight, Gabriele Svelto, Beth Rennie (she/her), the Mozilla Fuzzing Team
Introduced: 24 Jun 2025
NewCVE-2025-6436 (opens in a new tab)How to fix?
Upgrade Firefox to version 140.0-beta1 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-Bounds due to improper memory management in the rendering process. An attacker can execute arbitrary code or cause the application to crash by enticing a user to visit a specially crafted web page.