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New infostealer reaches enterprise devices through FortiClient EMS vulnerability

Feeds2.Feedburner •Zeljka Zorz • May 29, 2026

Attackers are delivering a broad-spectrum infostealer to enterprise computers by exploiting a known vulnerability (CVE-2026-35616) in FortiClient Enterprise Management Server (EMS). “The [malicious] payload was presented as a Fortinet endpoint update and executed through FortiClient-managed VPN scripting workflows,” Arctic Wold researchers noted. CVE-2026-35616 CVE-2026-35616 is an improper access control vulnerability vulnerability in FortiClient EMS, a centralized management platform through which IT admins deploy, configure, and monitor FortiClient endpoint security software across all devices in … More →

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Critical RCE Vulnerabilities Discovered in Fortinet Products Fortinet has identified multiple critical vulnerabilities in its FortiSandbox and FortiAuthenticator products, which could allow unauthenticated attackers to execute arbitrary code remotely. The vulnerabilities are tracked as CVE-2026-44277 and CVE-2026-26083, both published on May 12, 2026. FortiAuthenticator's flaw stems from improper access control, while FortiSandbox suffers from a missing authorization issue. These vulnerabilities affect various versions of FortiAuthenticator and FortiSandbox, with a CVSS score of 9.1 indicating their critical nature. Although no active exploitation has been reported, Fortinet's products have been frequently targeted in the past, raising concerns about potential future attacks. Administrators are urged to apply patches immediately to mitigate risks. Fortinet's advisory emphasizes the importance of maintaining updated systems to prevent exploitation. 60 sources 73

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New infostealer reaches enterprise devices through FortiClient EMS vulnerability

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Extracted Entities

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