Fortinet Auth Bypass (CVE-2026-24858) Scanner

Critical authentication bypass affecting FortiOS, FortiManager, FortiAnalyzer, FortiProxy, and FortiWeb via FortiCloud SSO. Actively exploited in the wild.

Disclosed in 2026, CVE-2026-24858 affects FortiOS/FortiWeb and carries a CVSS score of 9.6 (CRITICAL). Despite patches being available, automated scanning continues to find unpatched systems years after initial disclosure.

1. Enter your domain in the free scanner above
2. Click "Check Now" — no signup required
3. VulnScan scans your FortiOS/FortiWeb installation for CVE-2026-24858 indicators
4. Results in 60 seconds — free security grade included

What is CVE-2026-24858 (Fortinet Auth Bypass)?

Critical authentication bypass affecting FortiOS, FortiManager, FortiAnalyzer, FortiProxy, and FortiWeb via FortiCloud SSO. Actively exploited in the wild.

How do I check if my website is vulnerable to CVE-2026-24858?

Enter your domain in VulnScan above. Our scanner checks for CVE-2026-24858 indicators and FortiOS/FortiWeb version fingerprinting. Results in 60 seconds, no signup required.

Is CVE-2026-24858 still actively exploited?

Yes. Automated exploit kits continue targeting unpatched FortiOS/FortiWeb systems worldwide. The CVSS score of 9.6 reflects the severity of exploitation. Patch immediately and verify with an external scan.

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