Incorrect Privilege Assignment Affecting Firefox package, versions [,138.0b1)
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 May 2025
- disclosed29 Apr 2025
- creditAndrew McCreight
Introduced: 29 Apr 2025
CVE-2025-4085 (opens in a new tab)How to fix?
Upgrade Firefox to version 138.0b1 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Privilege Assignment via the privileged UITour actor. An attacker can access sensitive information and potentially escalate privileges by taking over the control over a content process.