The vulnerability of the SSL-VPN network interface function in Fortinet FortiOS operating systems allows attackers to bypass existing security mechanisms.

The vulnerability of SSL-VPN network gateways in Fortinet FortiOS operating systems is related to information disclosure. Exploiting this vulnerability allows a malicious actor to bypass existing security mechanisms by sending specially crafted HTTP requests...

Exploit for Authentication Bypass by Primary Weakness in Fortinet Fortios

Authentication Bypass Vulnerability in Fortinet FortiOSCVE-20...

CVE-2025-62439

An Improper Verification of Source of a Communication Channel vulnerability CWE-940 vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions may allow an authenticated user with knowledge of FSSO policy configurations t...

CVE-2025-55018

An inconsistent interpretation of http requests 'http request smuggling' vulnerability in Fortinet FortiOS 7.6.0, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4.3 through 6.4.16 may allow an unauthenticated attacker to smuggle an unlogged http request...

Vulnerabilities fixed in Fortinet FortiSandbox, FortiAuthenticator and FortiClient

Fortinet has fixed vulnerabilities in FortiSandbox versions 4.4.8 and 5.0.5, FortiAuthenticator versions 6.3 to 6.6.6 and FortiClient versions 7.0, 7.2 and 7.4. The vulnerability in FortiSandbox involves Cross-site Scripting, which allows unauthenticated attackers to execute arbitrary commands vi...

CVE-2026-22153

An Authentication Bypass by Primary Weakness vulnerability CWE-305 vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4 may allow an unauthenticated attacker to bypass LDAP authentication of Agentless VPN or FSSO policy, when the remote LDAP server is configured in a specific way...

CVE-2026-21743

A missing authorization vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.6, FortiAuthenticator 6.5 all versions, FortiAuthenticator 6.4 all versions, FortiAuthenticator 6.3 all versions may allow a read-only user to make modification to local users via a file upload to an unprotecte...

CVE-2025-62676

An Improper Link Resolution Before File Access 'Link Following' vulnerability CWE-59 vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.4, FortiClientWindows 7.2.0 through 7.2.12, FortiClientWindows 7.0 all versions may allow a local low-privilege attacker to perform an arbitrary file...

CVE-2025-68686

CVE-2025-68686 affects Fortinet FortiOS across multiple branches (7.6.0–7.6.1, 7.4.0–7.4.6, 7.2.x, 7.0.x, 6.4.x). It permits a remote unauthenticated attacker to bypass the patch for the symbolic link persistency mechanism via crafted HTTP requests, resulting in exposure of sensitive information....

CVE-2025-62676

An Improper Link Resolution Before File Access 'Link Following' vulnerability CWE-59 vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.4, FortiClientWindows 7.2.0 through 7.2.12, FortiClientWindows 7.0 all versions may allow a local low-privilege attacker to perform an arbitrary file...

CVE-2025-62439

An Improper Verification of Source of a Communication Channel vulnerability CWE-940 vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions may allow an authenticated user with knowledge of FSSO policy configurations t...

CVE-2025-62439

An Improper Verification of Source of a Communication Channel vulnerability CWE-940 vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions may allow an authenticated user with knowledge of FSSO policy configurations t...

CVE-2026-22153

An Authentication Bypass by Primary Weakness vulnerability CWE-305 vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4 may allow an unauthenticated attacker to bypass LDAP authentication of Agentless VPN or FSSO policy, when the remote LDAP server is configured in a specific way...

CVE-2026-21743

A missing authorization vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.6, FortiAuthenticator 6.5 all versions, FortiAuthenticator 6.4 all versions, FortiAuthenticator 6.3 all versions may allow a read-only user to make modification to local users via a file upload to an unprotecte...

Fortinet Patches Critical SQLi Flaw Enabling Unauthenticated Code Execution

Fortinet has released security updates to address a critical flaw impacting FortiClientEMS that could lead to the execution of arbitrary code on susceptible systems. The vulnerability, tracked as CVE-2026-21643 , has a CVSS rating of 9.1 out of a maximum of 10.0. "An improper neutralization of...

Fortinet FortiOS 安全漏洞

Fortinet FortiOS is a security operating system developed by the American company Fortinet, specifically designed for use with the FortiGate network security platform. This system offers users various security features, including firewalls, antivirus protection, IPSec/SSLVPN, web content filterin...

Fortinet FortiOS 格式化字符串错误漏洞

Fortinet FortiOS is a security operating system developed by Fortinet Corporation, specifically for use on the FortiGate network security platform. This system provides users with various security features such as firewalls, antivirus protection, IPSec/SSLVPN, web content filtering, and anti-spam...

Fortinet FortiAuthenticator 安全漏洞

Fortinet FortiAuthenticator is a centralized user identity management solution provided by the American company Fortinet. Vulnerabilities exist in versions 6.6.0 to 6.6.6, 6.5 all versions, 6.4 all versions, and 6.3 all versions of FortiAuthenticator. These vulnerabilities stem from the lack of...

Fortinet FortiOS 信息泄露漏洞

Fortinet FortiOS is a security operating system developed by the American company Fortinet, specifically designed for use on the FortiGate network security platform. This system provides users with various security features, including firewalls, antivirus protection, IPSec/SSLVPN, web content...

PT-2026-7273

Name of the Vulnerable Software and Affected Versions Fortinet FortiOS versions 6.4.3 through 6.4.16 Fortinet FortiOS versions 7.0 all versions Fortinet FortiOS versions 7.2 all versions Fortinet FortiOS versions 7.4.0 through 7.4.9 Fortinet FortiOS version 7.6.0 Description An issue exists in th...