What is CVE-2025-11720?

CVE-2025-11720 is a high-severity vulnerability in Google Android, classified under User Interface (UI) Misrepresentation of Critical Information. CVSS score: 8.1/10. Published 2025-10-14.

How severe is CVE-2025-11720?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Google Android

CVE-2025-11720

The Firefox and Firefox Focus UI for the Android custom tab feature only showed the "site" that was loaded, not the full hostname. User supplied content hosted on a subdomain of a site could have been used to fool a user into thinking it was content from a different subdomain of that site. This vulnerability was fixed in Firefox 144.

Published 2025-10-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (17.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Google Android
Mozilla Firefox — versions 144

Weakness classification (CWE)

CWE-451 — User Interface (UI) Misrepresentation of Critical Information

References

bugzilla.mozilla.org/show_bug.cgi (Permissions Required, Issue Tracking)
bugzilla.mozilla.org/show_bug.cgi (Permissions Required, Issue Tracking)
www.mozilla.org/security/advisories/mfsa2025-81/ (Vendor Advisory)

Frequently asked questions

What is CVE-2025-11720?: CVE-2025-11720 is a high-severity vulnerability in Google Android, classified under User Interface (UI) Misrepresentation of Critical Information. CVSS score: 8.1/10. Published 2025-10-14.
How severe is CVE-2025-11720?: High severity. CVSS v3 base score is 8.1 out of 10.