A improper neutralization of script-related html tags in a web page (basic xss) vulnerability in Fortinet FortiADC 8.0.0, FortiADC 7.6.0 through 7.6.3, FortiADC 7.4 all versions, FortiADC 7.2 all versions may allow attacker to execute unauthorized code or commands via crafted URL.

An Out-of-bounds Write vulnerability [CWE-787] in FortiADC 8.0.0, 7.6.0 through 7.6.2, 7.4.0 through 7.4.7, 7.2 all versions, 7.1 all versions, 7.0 all versions, 6.2 all versions may allow an authenticated attacker to execute arbitrary code via specially crafted HTTP requests.

An exposure of sensitive information to an unauthorized actor vulnerability in Fortinet FortiADC 7.4.0, FortiADC 7.2 all versions, FortiADC 7.1 all versions, FortiADC 7.0 all versions, FortiADC 6.2 all versions may allow an admin with read-only permission to get the external resources password via the logs of the product

An exposure of sensitive information to an unauthorized actor vulnerability [CWE-200] in Fortinet FortiADC version 7.4.0, version 7.2.3 and below, version 7.1.4 and below, 7.0 all versions, 6.2 all versions may allow an authenticated attacker to obtain sensitive data via crafted HTTP or HTTPs requests.

CVE-2025-26466A flaw was found in the OpenSSH package. For each ping packet the SSH server receives, a pong packet is allocated in a memory buffer and stored in a queue of packages. It is only freed when the server/client key exchange has finished. A malicious client may keep sending such packages, leading to an uncontrolled increase in memory consumption on the server side. Consequently, the server may become unavailable, resulting in a denial of service attack.

A externally controlled reference to a resource in another sphere vulnerability in Fortinet allows attacker to poison web caches via crafted HTTP requests, where the Host header points to an arbitrary webserver

An improper access control vulnerability [CWE-284] in Fortinet FortiADC version 7.4.0 through 7.4.1 and before 7.2.4 allows a read only authenticated attacker to perform some write actions via crafted HTTP or HTTPS requests.

An improper certificate validation vulnerability [CWE-295] in FortiADC 7.4.0, 7.2 all versions, 7.1 all versions, 7.0 all versions may allow a remote and unauthenticated attacker to perform a Man-in-the-Middle attack on the communication channel between the device and public SDN connectors.

An exposure of sensitive system information to an unauthorized control sphere vulnerability [CWE-497] in FortiADC version 7.4.1 and below, version 7.2.3 and below, version 7.1.4 and below, version 7.0.5 and below, version 6.2.6 and below may allow a read-only admin to view data pertaining to other admins.

A fundamental design flaw within the RADIUS protocol has been proven to be exploitable, compromising the integrity in the RADIUS Access-Request process. The attack allows a malicious user to modify packets in a way that would be indistinguishable to a RADIUS client or server. To be successful, the attacker must have the ability to inject themselves between the client and server.

Multiple buffer copy without checking size of input ('classic buffer overflow') vulnerabilities [CWE-120] in FortiADC version 7.2.0 and before 7.1.2 & FortiDDoS-F version 6.5.0 and before 6.4.1 allows a privileged attacker to execute arbitrary code or commands via specifically crafted CLI requests.

An improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiADC version 7.1.1 and below, version 7.0.3 and below, version 6.2.5 and below may allow an authenticated attacker to perform a cross-site scripting attack via crafted HTTP requests.

Multiple instances of improper input validation vulnerability in Fortinet FortiADC version 7.1.0, version 7.0.0 through 7.0.2 and version 6.2.4 and below allows an authenticated attacker to retrieve files with specific extension from the underlying Linux system via crafted HTTP requests.

An improper privilege management vulnerability [CWE-269] in FortiADC versions 6.2.1 and below, 6.1.5 and below, 6.0.4 and below, 5.4.5 and below and 5.3.7 and below may allow a remote authenticated attacker with restricted user profile to modify the system files using the shell access.

A unverified password change in Fortinet FortiADC version 6.2.0 through 6.2.3, 6.1.x, 6.0.x, 5.x.x allows an authenticated attacker to bypass the Old Password check in the password change form via a crafted HTTP request.

A missing cryptographic steps vulnerability in the function that encrypts users' LDAP and RADIUS credentials in FortiSandbox before 4.0.1, FortiWeb before 6.3.12, FortiADC before 6.2.1, FortiMail 7.0.1 and earlier may allow an attacker in possession of the password store to compromise the confidentiality of the encrypted secrets.

A buffer overflow [CWE-121] in the TFTP client library of FortiOS, may allow an authenticated local attacker to achieve arbitrary code execution via specially crafted command line arguments.

A buffer overflow [CWE-121] in the TFTP client library of FortiOS before 6.4.7 and FortiOS 7.0.0 through 7.0.2, may allow an authenticated local attacker to achieve arbitrary code execution via specially crafted command line arguments.

A cleartext storage of sensitive information in GUI in FortiADC versions 5.4.3 and below, 6.0.0 and below may allow a remote authenticated attacker to retrieve some sensitive information such as users LDAP passwords and RADIUS shared secret by deobfuscating the passwords entry fields.

A buffer underwrite (CWE-124) vulnerability in the firmware verification routine of FortiWeb, FortiOS, FortiSwitch, FortiADC, FortiAI, FortiManager, FortiAnalyzer, FortiProxy may allow an attacker located in the adjacent network to potentially execute arbitrary code via a specifically crafted firmware image.

A clear text storage of sensitive information into log file vulnerability in FortiADCManager 5.3.0 and below, 5.2.1 and below and FortiADC 5.3.7 and below may allow a remote authenticated attacker to read other local users' password in log files.

An improper authorization vulnerability in FortiADC may allow a remote authenticated user with low privileges to perform certain actions such as rebooting the system.

An improper neutralization of input vulnerability in Fortinet FortiADC 5.3.3 and earlier may allow an attacker to execute a stored Cross Site Scripting (XSS) via a field in the traffic group interface.

A Improper Access Control in Fortinet FortiOS 6.0.2, 5.6.7 and before, FortiADC 6.1.0, 6.0.0 to 6.0.1, 5.4.0 to 5.4.4 allows attacker to obtain the LDAP server login credentials configured in FortiGate via pointing a LDAP server connectivity test request to a rogue LDAP server instead of the configured one.