Public vulnerability disclosure

CVE-2026-126147

CVE-2026-126147

publishedCWE-22

A 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 all versions may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.

Technical severity9.8 criticalCVSS 3.1 · CNA: fortinet
Published2026-11-11Source updated 2026-11-11
Collected2026-11-111 attributed source

Fixes and workarounds

Fix

Upgrade to FortiMail version 8.0.2 or above Upgrade to FortiMail version 7.6.7 or above Upgrade to FortiMail version 7.4.9 or above

Source: CNA: fortinet

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
FortiMail
Fortinet
≥ 8.0.0; ≤ 8.0.1 (affected, semver)
≥ 7.6.0; ≤ 7.6.6 (affected, semver)
≥ 7.4.0; ≤ 7.4.8 (affected, semver)
≥ 7.2.0; ≤ 7.2.9 (affected, semver)
Other versions: unaffected
CNA: fortinet

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
3.1 / 9.8
critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:RCNA: fortinet

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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