What is CVE-2025-0244?

CVE-2025-0244 is a medium-severity vulnerability in Mozilla Firefox, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 5.3/10. Published 2025-01-07.

How severe is CVE-2025-0244?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Open Redirect in Mozilla Firefox

CVE-2025-0244

When redirecting to an invalid protocol scheme, an attacker could spoof the address bar. *Note: This issue only affected Android operating systems. Other operating systems are unaffected.*. This vulnerability was fixed in Firefox 134.

Vulnerability class: Open Redirect

EPSS: 0.066 (93.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Mozilla Firefox — versions 134

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

security@mozilla.org (Issue Tracking)
security@mozilla.org (Vendor Advisory)

Frequently asked questions

What is CVE-2025-0244?: CVE-2025-0244 is a medium-severity vulnerability in Mozilla Firefox, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 5.3/10. Published 2025-01-07.
How severe is CVE-2025-0244?: Medium severity. CVSS v3 base score is 5.3 out of 10.