CVE-2025-8364

low-risk

Published 2025-08-19

A crafted URL using a blob: URI could have hidden the true origin of the page, resulting in a potential spoofing attack. *Note: This issue only affected Android operating systems. Other operating systems are unaffected.*. This vulnerability was fixed in Firefox 141.

Do I need to act?

0.03% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.3/10 Medium

NETWORK / LOW complexity

Affected Products (1)

Firefox

Affected Vendors

Mozilla

References (3)

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1909609

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1969937

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2025-56/

/ 100

low-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal