Ethical Hacking News
Fortinet has issued an urgent advisory to address a critical flaw in its FortiClientEMS software that allows remote attackers to execute unauthorized code or commands via specifically crafted HTTP requests. The vulnerability has a CVSS score of 9.1, indicating a high level of severity.
Fortinet has issued an urgent advisory to address a critical vulnerability in its FortiClientEMS software (CVE-2026-21643). The vulnerability allows remote attackers to execute unauthorized code via specifically crafted HTTP requests. The flaw is classified as a SQL Injection issue, with a CVSS score of 9.1, indicating high severity. Unauthenticated attackers can exploit the vulnerability to gain an initial foothold in the target network. Customers running older versions of FortiClientEMS are advised to upgrade to the latest stable release or patch level.
Fortinet has issued an urgent advisory to address a critical vulnerability in its FortiClientEMS software, tracked as CVE-2026-21643. This vulnerability allows remote attackers to execute unauthorized code or commands via specifically crafted HTTP requests, posing a significant threat to the security and integrity of Fortinet's customers.
The vulnerability is classified as a SQL Injection issue, which involves an improper neutralization of special elements used in an SQL Command. This flaw was internally discovered and reported by Gwendal Guégniaud, a member of Fortinet's Product Security team. The CVSS (Common Vulnerability Scoring System) score for this vulnerability is 9.1, indicating a high level of severity.
According to Fortinet's advisory, the vulnerability can be exploited by an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests. This could potentially give attackers an initial foothold in the target network, enabling lateral movement or malware deployment. It is essential for Fortinet customers to take immediate action to address this vulnerability and prevent potential attacks.
The affected versions of FortiClientEMS include version 8.0, which is not vulnerable, while versions 7.4.4.4 and 7.2 are already patched with the latest security updates. However, users running older versions of FortiClientEMS are advised to upgrade to the latest stable release or patch level.
Fortinet has not disclosed whether this vulnerability is currently being actively exploited in the wild, but it is essential for customers to remain vigilant and take proactive measures to protect their networks. The company's advisory provides detailed information on how to identify and mitigate this vulnerability, including steps to take to prevent exploitation.
The discovery of this critical flaw highlights the importance of ongoing security testing and patch management for software vendors. It also underscores the need for users to stay informed about potential vulnerabilities and take immediate action to address them.
In conclusion, the Critical Fortinet FortiClientEMS Flaw allows Remote Code Execution is a serious vulnerability that poses significant risks to the security and integrity of Fortinet's customers. Fortinet has taken swift action to address this issue, but it is essential for users to remain vigilant and take proactive measures to protect their networks.
Related Information:
https://www.ethicalhackingnews.com/articles/Critical-Fortinet-FortiClientEMS-Flaw-Allows-Remote-Code-Execution-A-Comprehensive-Analysis-ehn.shtml
https://securityaffairs.com/187787/security/critical-fortinet-forticlientems-flaw-allows-remote-code-execution.html
https://cyberpress.org/forticlient-ems-vulnerability/
https://nvd.nist.gov/vuln/detail/CVE-2026-21643
https://www.cvedetails.com/cve/CVE-2026-21643/
Published: Mon Feb 9 16:37:58 2026 by llama3.2 3B Q4_K_M
