CVE-2026-35616Vulnerability
Fortinet FortiClient EMS Improper Access Control Vulnerability
Reported by 4 independent sources · first reported by Recorded Future · last reported
Last reported yesterday
Fix due 9 Apr 2026
Used by ransomware: not knownCISA KEV catalogue
higher than 99% of CVEsFIRST EPSS, as of 23 Oct 2026
What the reports say
5 reports, newest first · the exact sentence from each-
Exposed Infrastructure Reveals How Ransomware Affiliates Used AI Agents to Execute Intrusions“CVE-2026-35616 (Fortinet FortiClient authentication bypass) (Actively exploited)”
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INC and The Gentlemen Ransomware: Exposed AI Infrastructure“Edge devices exploited at scale (per operator records): FortiClient EMS (CVE-2026-35616, 2,236 targets, 108 created admins, 4,140 managed endpoints), SimpleHelp (CVE-2024-57727, 242 unique IP addresses impacted) and cPanel (CVE-2026-41940, 49+ claimed breaches)”
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Cyber Brief 26-05 - April 2026“…on Vulnerabilties and Exposures (CVEs), Fortinet released an update for an Improper Access Control vulnerability in FortiClient EMS (CVE-2026-35616), while CISA reported active exploitation of a Microsoft SharePoint spoofing vulnerability CVE-2026-32201.”
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Cyber Brief 26-06 - May 2026“Threat actors exploited CVE-2026-35616 in FortiClient EMS to distribute an infostealer disguised as a legitimate Fortinet patch.”
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June 2026 CVE Landscape“Insikt Group created Nuclei templates to detect two of the vulnerabilities featured in this month’s report: CVE-2026-35616 affecting Fortinet FortiClient EMS and CVE-2026-25939 affecting Frangoteam FUXA.”
Indicators reported together
named in the same reports- 45.227.254[.]43in 2 reports
Copy this indicator · defanged
Also named with it: CVE-2026-33825, CVE-2025-55182, CVE-2024-57727, CVE-2026-41940, CVE-2026-42208, CVE-2025-49113, CVE-2026-15409, CVE-2026-25089, CVE-2026-39808, CVE-2026-11645, CVE-2026-28318, CVE-2026-20230, CVE-2026-43284, CVE-2026-0300, CVE-2026-45585, CVE-2026-32201, CVE-2025-59528, CVE-2026-21509, CVE-2025-8088
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