CVE-2025-0246 Address bar spoofing using an invalid protocol scheme on Firefox for Android

What is CVE-2025-0246?

CVE-2025-0246 is a medium-severity vulnerability in Mozilla Firefox, published on 7 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

When using an invalid protocol scheme, an attacker could spoof the address bar. *Note: This issue only affected Android operating systems. Other operating systems are unaffected.* *Note: This issue is a different issue from CVE-2025-0244. This vulnerability was fixed in Firefox 134.

Which versions are affected by CVE-2025-0246?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2025-0246?

Upgrade to a fixed version.

Is CVE-2025-0246 being exploited?

There is no known exploitation of CVE-2025-0246 in the wild and no public exploit code.

Other vulnerabilities in Mozilla Firefox

• CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Exploited Critical 10.0
• CVE-2010-3765 Mozilla Multiple Products Remote Code Execution Exploited Critical 9.8
• CVE-2022-26486 Mozilla Firefox Use-After-Free Exploited Critical 9.6
• CVE-2022-26485 Mozilla Firefox Use-After-Free Exploited High 8.8
• CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Exploited High 8.8

All Mozilla Firefox vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-xwpw-pxrm-39pm.