Path traversal in Fortinet FortiMail
Priority CRITICAL 100Exploited in the wildCWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.6, FortiMail 7.4.0 through 7.4.8, FortiMail 7.2.0 through 7.2.9, FortiMail 7.0 all versions may allow an unauthenticated attacker to write arbitrary files on the underlying system via crafted HTTP or HTTPS requests.
Why it matters now
Exploitation Active In CISA KEV since 2026-10-01CISA due date 2026-10-04
EPSS 0.04573 91st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Fortinet | FortiMail | 8.0.0 – 8.0.1; 7.6.0 – 7.6.6; 7.4.0 – 7.4.8; 7.2.0 – 7.2.9; 7.0.0 – 7.0.9 | — | No fix listed | CNA |
- FortiMail VendorFortinet Affected 8.0.0 – 8.0.1; 7.6.0 – 7.6.6; 7.4.0 – 7.4.8; 7.2.0 – 7.2.9; 7.0.0 – 7.0.9 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:* | 7.0.0 – 7.0.9; 7.2.0 – 7.2.9; 7.4.0 to before 7.4.9; 7.6.0 to before 7.6.7; 8.0.0 to before 8.0.2 | Vulnerable | Fortinet |
- cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:* Versions 7.0.0 – 7.0.9; 7.2.0 – 7.2.9; 7.4.0 to before 7.4.9; 7.6.0 to before 7.6.7; 8.0.0 to before 8.0.2 Vulnerable ·Fortinet
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-01 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2026-104286
- 2026-10-03 Alias added: GHSA-6gxc-3vv7-7w24
- 2026-10-07 CISA SSVC decision points changed
- 2026-10-25 EPSS moved to the 90th–95th percentile
- 2026-10-28 Title updated · CNA
- 2026-10-28 Affected versions changed · CNA
- 2026-10-28 Title updated · CNA
- 2026-10-28 Affected versions changed · CNA
References
More Fortinet Fortimail vulnerabilities
- TI-2025-23811 Stack-based buffer overflow in Fortinet FortiNDR KEVCVSS 3.1CRITICAL 9.8
- TI-2020-07433 Improper authentication in Fortinet FortiMail CVSS 3.1CRITICAL 9.8
- TI-2021-14584 An improper authentication vulnerability in FortiMail before 7.0.1 may allow a remote… CVSS 3.1CRITICAL 9.8
- TI-2021-06324 SQL injection in Fortinet FortiMail CVSS 3.1CRITICAL 9.8
- TI-2023-25708 Improper access control in Fortinet FortiMail CVSS 3.1CRITICAL 9.0
- TI-2021-12257 Improper input validation in Fortinet FortiMail CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-104286 · CVE Program
- CVE-2026-104286 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-6gxc-3vv7-7w24 · GitHub Advisory Database · CC BY 4.0
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