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. About 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 → The post New infostealer reaches enterprise devices through FortiClient EMS vulnerability appeared first on Help Net Security .

Hackers are exploiting an authentication bypass vulnerability (CVE-2026-35616) in FortiClient Enterprise Management Server (EMS) to deliver an undocumented credential stealer called EKZ. [...]

A critical FortiClient Endpoint Management Server (EMS) vulnerability patched in April has been exploited in fresh attacks to deploy information-stealing malware, Arctic Wolf reports. The flaw, tracked as CVE-2026-35616 (CVSS score of 9.1), can be exploited remotely via crafted requests for remote code execution (RCE) and does not require authentication. Threat actors are exploiting a critical FortiClient […]

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added half a dozen security flaws to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The list of vulnerabilities is as follows - CVE-2026-21643 (CVSS score: 9.1) -  An SQL injection vulnerability in  Fortinet FortiClient EMS that could allow an unauthenticated attacker to

Fortinet FortiClient EMS contains a SQL injection vulnerability that may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in Fortinet FortiClient EMS to its Known Exploited Vulnerabilities catalog The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in Fortinet FortiClient EMS, tracked as CVE-2026-35616 (CVSS score of 9.1), to its Known Exploited Vulnerabilities (KEV) catalog. This week, Fortinet released out-of-band patches for a […]

The authentication bypass flaw, tracked as CVE-2026-35616, is the latest in a series of Fortinet vulnerabilities that have been exploited in the wild.

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-35616 - Fortinet FortiClient EMS Improper Access Control Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria . 

Fortinet issued emergency patches for a critical FortiClient EMS flaw (CVE-2026-35616) actively exploited in the wild. Fortinet released out-of-band patches for a critical FortiClient EMS vulnerability, tracked as CVE-2026-35616 (CVSS 9.1), which is already being exploited in attacks in the wild. The flaw is an improper access control issue that allows attackers to bypass authentication […]

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

Fortinet has released out-of-band patches for a critical security flaw impacting FortiClient EMS that it said has been exploited in the wild. The vulnerability, tracked as CVE-2026-35616 (CVSS score: 9.1), has been described as a pre-authentication API access bypass leading to privilege escalation. "An improper access control vulnerability [CWE-284] in FortiClient EMS may allow an

Defused Cyber has spotted a critical Fortinet FortiClient Endpoint Management Server (EMS) zero-day vulnerability (CVE-2026-35616) being exploited in the wild. This time around, the confirmation of active exploitation came almost immediately from Fortinet, as well. “Fortinet has observed [CVE-2026-35616] to be exploited in the wild and urges vulnerable customers to install the hotfix for FortiClient EMS 7.4.5 and 7.4.6,” the company stated in a security advisory published on Saturday. About CVE-2026-35616 On Monday, Defused Cyber … More → The post FortiClient EMS zero-day exploited, emergency hotfixes available (CVE-2026-35616) appeared first on Help Net Security .