CVE-2025-1939
LowCVSS 3.9Exploitation Probability (EPSS)
Low risk8th percentile - higher than 8% of all known CVEs
Summary
Android apps can load web pages using the Custom Tabs feature. This feature supported a transition animation that could have been used to trick a user into granting sensitive permissions by hiding what the user was actually clicking. This vulnerability was fixed in Firefox 136.
Risk Assessment
An attacker could exploit the transition animation to deceive a user into granting sensitive permissions without their informed consent, potentially leading to unauthorized access to data or device functions.
Recommendation
Update Firefox to version 136 or later to eliminate this vulnerability.
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Original NVD description (English source)
Android apps can load web pages using the Custom Tabs feature. This feature supports a transition animation that could have been used to trick a user into granting sensitive permissions by hiding what the user was actually clicking. This vulnerability was fixed in Firefox 136.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS