Vulnerability details
CVE-2026-104286
Actively exploited
Fortinet FortiMail
CVSS 3.1
9.8Critical
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (fortinet) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Fortinet | FortiMail | 7.0.0 ≤ v ≤ 7.0.9 | CVEProject cvelistV5 (CNA) |
| Fortinet | FortiMail | 7.2.0 ≤ v ≤ 7.2.9 | CVEProject cvelistV5 (CNA) |
| Fortinet | FortiMail | 7.4.0 ≤ v ≤ 7.4.8 | CVEProject cvelistV5 (CNA) |
| Fortinet | FortiMail | 7.6.0 ≤ v ≤ 7.6.6 | CVEProject cvelistV5 (CNA) |
| Fortinet | FortiMail | 8.0.0 ≤ v ≤ 8.0.1 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-10-01
- Last updated
- 2026-10-28
- State
- Published
- Assigner (CNA)
- fortinet
- Kolun priority
- 88 · Critical
CISA KEV catalog
- Date added
- 2026-10-01
- Due date
- 2026-10-04
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
4.57%
Probability of exploitation in 30 days
91.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-22Execute unauthorized code or commands