What is CVE-2025-27426?

CVE-2025-27426 is a medium-severity vulnerability in Apple Iphone OS, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 5.4/10. Published 2025-03-04.

How severe is CVE-2025-27426?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2025-27426 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Open Redirect in Apple Iphone OS

CVE-2025-27426

Malicious websites utilizing a server-side redirect to an internal error page could result in a spoofed website URL. This vulnerability was fixed in Firefox for iOS 136.

Vulnerability class: Open Redirect

EPSS: 0.002 (12.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

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

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2025-27426?: CVE-2025-27426 is a medium-severity vulnerability in Apple Iphone OS, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 5.4/10. Published 2025-03-04.
How severe is CVE-2025-27426?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2025-27426 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.