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CVE-2025-6431

Medium

Description

When a link can be opened in an external application, Firefox for Android will, by default, prompt the user before doing so. An attacker could have bypassed this prompt, potentially exposing the user to security vulnerabilities or privacy leaks in external applications. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.*. This vulnerability was fixed in Firefox 140.

SeverityMedium
CVSS6.5
Exploit probability—
ProductMozilla Firefox
PublishedJun 24, 2025
First seenJun 24, 2025
Weakness typeCWE-285CWE-285

How to fix

Update
  • mozilla firefox140.0 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 140.0140.0

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