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4.8

FortiNAC-F Users May Be Redirected to Untrusted Websites

CVE-2026-21741 · published 6 months ago
Summary

A security issue in FortiNAC-F software could allow a malicious attacker to redirect users to a different website, potentially leading to phishing or other types of attacks. This issue affects certain versions of FortiNAC-F, and it's essential to update to the latest version to protect against potential threats. Users should check with Fortinet for the latest patches and instructions on how to update their systems.

What to do
  • Update fortinet fortinac-f to version 7.6.6 or later.
Affected software
VendorProductAffected versions
fortinet fortinac-f >= 7.2.0, < 7.6.6
cpe:2.3:a:fortinet:fortinac-f:*:*:*:*:*:*:*:*
Original advisory text
An URL Redirection to Untrusted Site ('Open Redirect') vulnerability [CWE-601] vulnerability in Fortinet FortiNAC-F 7.6.0 through 7.6.5, FortiNAC-F 7.4 all versions, FortiNAC-F 7.2 all versions may...
An URL Redirection to Untrusted Site ('Open Redirect') vulnerability [CWE-601] vulnerability in Fortinet FortiNAC-F 7.6.0 through 7.6.5, FortiNAC-F 7.4 all versions, FortiNAC-F 7.2 all versions may allow a remote privileged attacker with system administrator role to redirect users to an arbitrary website via crafted CSV file.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
4.8 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-601Open Redirect
Timeline
Published14 Apr 2026
Updated29 Oct 2026
First seen14 Apr 2026
Sources
CVE-2026-21741 · NVD
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