---
id: "CVE-2026-35616"
kind: "vulnerability"
aliases: ["CVE-2026-35616"]
title: "A improper access control vulnerability in Fortinet FortiClientEMS 7.4.5 through 7.4.6 may allow an unauthenticated\u2026"
severity: "critical"
cvss: 9.8
epss: null
exploited: true
status: "open"
category: "vendor"
products: [{"name": "Fortinet FortiClient EMS", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "fortinet forticlientems", "fixed": [], "affected": "= 7.4.5", "ecosystem": "vendor"}, {"name": "fortinet forticlientems", "fixed": [], "affected": "= 7.4.6", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["endpoint-management", "exploited", "forticlient-ems", "fortinet", "vendor", "windows"]
not_affected_if: ["no-forticlient-ems-deployed"]
published_at: "2026-04-04T01:16:39+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T23:44:51+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-35616", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35616", "first_seen_at": "2026-10-23T23:44:51+00:00"}]
---

# A improper access control vulnerability in Fortinet FortiClientEMS 7.4.5 through 7.4.6 may allow an unauthenticated…

Fortinet FortiClient EMS, the endpoint management server for FortiClient, has an improper access control flaw that lets an unauthenticated attacker run unauthorized code or commands through crafted requests. CISA lists it as actively exploited in the wild.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Fortinet FortiClient EMS affected ? fixed ?
- vendor:fortinet forticlientems affected = 7.4.5 fixed ?
- vendor:fortinet forticlientems affected = 7.4.6 fixed ?

## How to check

Identify FortiClient EMS servers on your network and confirm their installed version against the Fortinet PSIRT advisory (unknown from sources).
Check whether the EMS admin interface is reachable from the internet.
Review EMS logs for unexpected requests (unknown from sources).

## Fix

Apply the mitigation or patch per Fortinet's vendor instructions (version not stated in sources).
If no mitigation is available, discontinue use of the product as CISA's required action directs.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-35616
- 2026-10-23T23:44:51+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-35616

## From the sources

Fortinet FortiClient EMS contains an improper access control vulnerability that may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.

CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_