Attackers exploited critical FortiClient EMS bug as a 0-day


Fortinet released an emergency patch over the weekend for a critical FortiClient Enterprise Management Server (EMS) bug believed to be under attack since at least March 31. The flaw, tracked as CVE-2026-35616, is an improper access control vulnerability that allows unauthenticated attackers to execute unauthorized code or commands via crafted requests.

It earned a critical 9.1 CVSS rating, and in addition to urging customers to install the hotfix for FortiClient EMS 7.4.5 and 7.4.6, the firewall vendor also warned that it has “observed this to be exploited in the wild.” This product allows companies to centrally manage and secure both remote and office computers, and this bug is the second critical FortiClient flaw to come under attack in the past few weeks.

Read more…
Source: The Register News


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • Pre-Auth RCE Alert: Critical SSH Flaw in Erlang/OTP (CVE-2025-32433)

    June 18, 2025

    The SonicWall Capture Labs threat research team became aware of a pre-authentication vulnerability in Erlang/OTP (Open Telegram Platform) SSH server implementation, assessed its impact, and developed mitigation measures. Erlang/OTP is a known toolkit used to build scalable, fault-tolerant systems such as telecommunications, messaging platforms, IoT infrastructure and financial services. It is used by organizations like Ericsson, ...

  • Scania hit by cyberattack – thousands of customers potentially affected

    June 18, 2025

    Swedish automotive manufacturer Scania has confirmed suffering a cyberattack which saw it lose sensitive customer data. Security researchers Hackmanac found a new thread on a dark web forum, in which a database allegedly stolen from ‘insurance.scania.com’ was being offered for sale to an exclusive buyer for an unknown sum of money. “hi guys. we hacked new ...

  • Hackers steal and destroy millions from Iran’s largest crypto exchange

    June 18, 2025

    Iran’s largest crypto exchange, Nobitex, said Wednesday that it was hacked and funds have been drained from its hot wallet. In a statement on its website translated by TechCrunch, Nobitex said it detected unauthorized access to its infrastructure and hot wallet, in which the company stores a portion of its customers’ cryptocurrency. The company said it ...

  • Critical Langflow Vulnerability (CVE-2025-3248) Actively Exploited to Deliver Flodrix Botnet

    June 17, 2025

    This blog details research and analysis of an active campaign that exploits a critical unauthenticated remote code execution (RCE) vulnerability, CVE-2025-3248, that has been identified in Langflow versions prior to 1.3.0. Langflow is a Python-powered visual framework for building AI applications with over 70,000 GitHub stars, and its versions prior to 1.3.0 contains a flaw ...

  • U.S. companies brace for Israel-Iran cyber spillover

    June 17, 2025

    As Israel and Iran exchange airstrikes, cybersecurity experts are warning that a quieter, but still destructive, digital conflict is unfolding behind the scenes. And U.S. companies could soon find themselves in the blast radius. Iran and Israel are home to some of the world’s most skilled hackers. Escalating tensions between the two could spill over into ...

  • Innovative Tunnelling and Forensic Tool Abuse: IR Tales from the Field

    June 17, 2025

    Rapid7’s Incident Response (IR) team was engaged to investigate an incident involving an attempted Cobalt Strike execution. The investigation uncovered twists and turns with pre-ransomware activities, tunneling tools, and attackers taking a page out of the defender’s playbook. The attacker took careful steps to maintain access to the environment through persistence that mimicked normal user behavior. ...