Is CVE-2026-21741 actively exploited?

No active exploitation of CVE-2026-21741 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-21741 be exploited remotely?

Yes. CVE-2026-21741 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-21741?

CVE-2026-21741 has a CVSS score of 4.8 (MEDIUM).

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MEDIUM

CVE-2026-21741

CWE-601Published: April 14, 2026· Updated: Apr 20, 2026

4.8

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:9.3th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-21741 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.