CVE-2026-21741

unknowncovered by 1 sourcefirst seen 2026-04-14

CVSSv3 Score: 2.2 An URL Redirection to Untrusted Site ('Open Redirect') vulnerability [CWE-601] in FortiNAC-F may allow a remote privileged attacker with system administrator role to redirect users to an arbitrary website via crafted CSV file. Revised on 2026-04-14 00:00:00

CSIRTS triage

What: Remote privileged attackers may redirect users to arbitrary websites via crafted CSV files.
Who is affected: Privileged users of FortiNAC-F.
Urgency: Remediation is necessary to prevent phishing and other attacks.
Action: Implement validation for imported CSV files.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Low exploitation risk0.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all EPSS-scored CVEs.

Advisory coverage (1)

unknownOpen Redirection via Import CSV optionfortinet · 2026-04-14

External references

NVD record for CVE-2026-21741

CVE.org record

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