Improper Input Validation Affecting Firefox package, versions [,157)
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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- published7 Oct 2026
- disclosed7 Oct 2026
- creditUnknown
Introduced: 7 Oct 2026
NewCVE-2026-100781 (opens in a new tab)How to fix?
Upgrade Firefox to version 157 or higher.
Overview
Affected versions of this package are vulnerable to Improper Input Validation in the Graphics: WebRender component due to incorrect boundary conditions. An attacker can break out of the sandbox and execute code with elevated privileges by exploiting improper input validation.