criticalKEV
CVE-2026-104286
FortiMail path traversal plus NULL-byte neutralisation failure - a crafted unauthenticated HTTP(S) request writes arbitrary files on the mail gateway (CVSS 9.8, CISA KEV, exploited as a zero-day)
- Severity
- critical
- Affected product
- FortiMail
- Affected versions
- FortiMail all versions before the fix
- Fixed in
- FortiMail 8.0.2 / 7.6.7 / 7.4.9 (7.2.x has no fix - migrate to 7.4 or later)
- Detection basis
- Appliance fingerprint
- Shipped rule
- FortiMail: FortiMail path traversal plus NULL-byte neutralisation failure - a crafted unauthenticated HTTP(S) request writes arbitrary files on the mail gateway (CVSS 9.8, CISA KEV, exploited as a zero-day)
- CISA KEV
- Listed as a known exploited vulnerability
- Added to NewScan
- 2026-10-02
- Detected by
- NewScan — free, self-hosted
How NewScan reports it
APPLIANCE FINGERPRINT
NewScan fingerprints the FortiMail appliance and reports this CVE when the detected version falls inside the affected range below.
References
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