Summary
generated automatically from NVD dataFortinet FortiMail has a path traversal flaw (CWE-22) that lets an unauthenticated attacker write arbitrary files to the underlying system through crafted HTTP or HTTPS requests. It affects FortiMail 8.0.0 through 8.0.1, 7.6.0 through 7.6.6, 7.4.0 through 7.4.8 and 7.2.0 through 7.2.9. The flaw is listed in the CISA KEV catalog as actively exploited, and it carries a CVSS v3.1 score of 9.8 (CRITICAL).
NVD 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 may allow an unauthenticated attacker to write arbitrary files on the underlying system via crafted HTTP or HTTPS requests.
⚠️ Actively exploited — CISA KEV
This CVE was added to CISA's Known Exploited Vulnerabilities catalog on 2026-10-01. It is confirmed exploited in the wild and must be patched as a priority.
Remediation deadline (US federal agencies): 2026-10-04
EPSS · FIRST.org
2.2%probability of exploitation in the next 30 days
Higher than 82% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 1 oct. 2026
- Updated
- 7 oct. 2026
- Status
- Analyzed
- Source
- psirt@fortinet.com
Affected products
Weaknesses (CWE)
References (2)
- https://fortiguard.fortinet.com/psirt/FG-IR-26-175MitigationVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-104286US Government Resource
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