Improper Restriction of Rendered UI Layers or Frames 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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-UNMANAGED-FIREFOX-10558099
- published27 Jun 2025
- disclosed24 Jun 2025
- credithafiizh, kang ali
Introduced: 24 Jun 2025
NewCVE-2025-6434 (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 Improper Restriction of Rendered UI Layers or Frames via the HTTPS-Only exception process. An attacker can gain unauthorized access to sensitive information by tricking a user into interacting with a maliciously crafted web page that bypasses intended security delays.