PT-2025-9671 · Mozilla+2 · Firefox For Ios+2

Renwa · CVE-2025-27426 · Published 2025-03-04 · Updated 2025-11-19

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Firefox for iOS versions prior to 136

Description The issue allows malicious websites to utilize a server-side redirect to an internal error page, resulting in a spoofed website URL.

Recommendations For Firefox for iOS versions prior to 136, update to version 136 or later to resolve the issue.

Fix

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

ALT-PU-2025-11100

ALT-PU-2025-14599

CVE-2025-27426

Affected Products

Alt Linux

Astra Linux

Firefox For Ios

References · 10

• https://osv.dev/vulnerability/CVE-2025-27426 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-27426 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2025-13 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-27426 · Security Note
• https://cve.org/CVERecord?id=CVE-2025-27426 · Security Note
• https://ubuntu.com/security/CVE-2025-27426 · Vendor Advisory
• https://t.me/cvedetector/19501 · Telegram Post
• https://twitter.com/CVEnew/status/1897133287623041340 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1897034548002623798 · Twitter Post
• https://bugzilla.mozilla.org/show_bug.cgi?id=1933079 · Note