Fortinet PSIRT AdvisoriesFG-IR-26-165

Arbitrary process termination from exposed minifilter communication port

CVSSv3 Score: 4.7 An Unverified Ownership Vulnerability [CWE-283] in FortiClient Windows fortimon3 driver may allow an authenticated attacker to terminate arbitrary processes via an exposed minifilter communication port. Revised on 2026-09-08 00:00:00

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4.7CVSS out of 10Medium severity

Scope

What the vendor says is affected

FortiClient

Timeline

When this advisory changed

Sep 8, 2026 at 7:00 AM UTC
Published by Fortinet
The publication date reported by the vendor.
Sep 8, 2026 at 5:10 PM UTC
Added to SecurityAlert
We collected the advisory from the official source.
Sep 13, 2026 at 4:50 AM UTC
Confirmed at the source
Our collector saw this advisory during a later source check.

Source

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Vendor: Fortinet
Advisory ID: FG-IR-26-165
Last source check: Sep 13, 2026 at 4:50 AM UTC

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