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CVE-2026-106173

See advisory•CRITICAL · CVSS 9.8• PoC published

What is CVE-2026-106173?

A improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiSIEM 7.5.0 may allow attacker to execute unauthorized code or commands via specially crafted packets.

CVSS9.8 NVD 3.1
SeverityCRITICAL
Exploitation PoC published
EPSS<1% · P36
Triage statusPoC Available
ActionPatch within 48 hours
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWECWE-22
NVD published2026-10-13
NVD last modified2026-10-21

Timeline

  • 2026-10-13Published to the U.S. National Vulnerability Database (NVD)
  • 2026-10-21First covered in a defend.network daily briefing
  • 2026-10-21NVD record last updated

Affected product

See advisory

Remediation Steps

  1. Prioritize patching FortiSIEM instances due to public PoC availability
  2. Apply critical security patch released by Fortinet
  3. Restrict unauthenticated access to FortiSIEM management interfaces
  4. Review logs for exploitation attempts and unauthorized code execution

Related vulnerabilities

Browse all tracked CVEs in the defend.network CVE database →

🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.