A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.

A client-side enforcement of server-side security [CWE-602] vulnerability in FortiManager and FortiAnalyzer may allow a remote attacker with low privileges to access a privileged web console via client side code execution.

A incorrect privilege assignment vulnerability in Fortinet FortiAnalyzer 7.4.0 through 7.4.3, FortiAnalyzer 7.2.0 through 7.2.5, FortiAnalyzer 7.0 all versions, FortiAnalyzer 6.4 all versions, FortiAnalyzer Cloud 7.4.1 through 7.4.2, FortiAnalyzer Cloud 7.2.1 through 7.2.6, FortiAnalyzer Cloud 7.0 all versions, FortiAnalyzer Cloud 6.4 all versions, FortiManager 7.4.0 through 7.4.3, FortiManager 7.2.0 through 7.2.5, FortiManager 7.0 all versions, FortiManager 6.4 all versions allows attacker to escalate privilege via specific shell commands

A stack-based buffer overflow vulnerability in Fortinet FortiAnalyzer 7.4.0 through 7.4.3, FortiAnalyzer 7.2.0 through 7.2.5, FortiAnalyzer 7.0.0 through 7.0.12, FortiAnalyzer 6.4.0 through 6.4.14, FortiAnalyzer Cloud 7.4.1 through 7.4.3, FortiAnalyzer Cloud 7.2.1 through 7.2.5, FortiAnalyzer Cloud 7.0.1 through 7.0.11, FortiAnalyzer Cloud 6.4 all versions, FortiManager 7.4.0 through 7.4.3, FortiManager 7.2.0 through 7.2.5, FortiManager 7.0.0 through 7.0.12, FortiManager 6.4.0 through 6.4.14, FortiManager Cloud 7.4.1 through 7.4.3, FortiManager Cloud 7.2.1 through 7.2.5, FortiManager Cloud 7.0.1 through 7.0.11, FortiManager Cloud 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted packets.

A improper privilege management vulnerability in Fortinet FortiManager Cloud 7.4.1 through 7.4.3, FortiManager Cloud 7.2.1 through 7.2.5, FortiManager Cloud 7.0 all versions, FortiManager 7.4.0 through 7.4.3, FortiManager 7.2.0 through 7.2.5, FortiManager 7.0 all versions, FortiManager 6.4 all versions allows attacker to escalation of privilege via specific shell commands

An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] in FortiOS, FortiManager, FortiAnalyzer, FortiProxy, FortiSwitchManager, FortiWeb may allow an attacker with a FortiCloud account and a registered device to log into other devices registered to other accounts, if FortiCloud SSO authentication is enabled on those devices.Please note that the FortiCloud SSO login feature is not enabled in default factory settings. However, when an administrator registers the device to FortiCare from the device's GUI, unless the administrator disables the toggle switch "Allow administrative login using FortiCloud SSO" in the registration page, FortiCloud SSO login is enabled upon registration. This vulnerability was found being exploited in the wild by two malicious FortiCloud accounts, which were locked out on 2026-01-22. In order to protect its customers from further exploit, Fortinet disabled FortiCloud SSO on FortiCloud side on 2026-01-26. It was re-enabled on 2026-01-27 and no longer supports login from devices running vulnerable versions. Consequently, customers must upgrade to the latest versions listed below for the FortiCloud SSO authentication to function.FortiManager Cloud, FortiAnalyzer Cloud, FortiGate Cloud are NOT impacted.Setups with Custom IdP for SSO instead of FortiCloud are not impacted (including setups using FortiAuthenticator as the Custom IdP)

A missing authentication for critical function in FortiManager 7.6.0, FortiManager 7.4.0 through 7.4.4, FortiManager 7.2.0 through 7.2.7, FortiManager 7.0.0 through 7.0.12, FortiManager 6.4.0 through 6.4.14, FortiManager 6.2.0 through 6.2.12, Fortinet FortiManager Cloud 7.4.1 through 7.4.4, FortiManager Cloud 7.2.1 through 7.2.7, FortiManager Cloud 7.0.1 through 7.0.12, FortiManager Cloud 6.4.1 through 6.4.7 allows attacker to execute arbitrary code or commands via specially crafted requests.

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.

A use of potentially Dangerous Function vulnerability [CWE-676] in FortiAnalyzer and FortiManager API may allow an authenticated attacker to cause a system hang via multiple specially crafted HTTP requests causing crashes. This happens if internal locks are aligned, which is out of control of the attacker.

A hidden functionality vulnerability in Fortinet FortiAnalyzer 7.6.0 through 7.6.3, FortiAnalyzer 7.4.0 through 7.4.7, FortiAnalyzer 7.2.0 through 7.2.10, FortiAnalyzer 7.0.0 through 7.0.14, FortiAnalyzer 6.4 all versions, FortiAnalyzer Cloud 7.6.2, FortiAnalyzer Cloud 7.4.1 through 7.4.7, FortiAnalyzer Cloud 7.2.1 through 7.2.10, FortiAnalyzer Cloud 7.0.1 through 7.0.14, FortiAnalyzer Cloud 6.4 all versions, FortiManager 7.6.0 through 7.6.3, FortiManager 7.4.0 through 7.4.7, FortiManager 7.2.0 through 7.2.10, FortiManager 7.0.0 through 7.0.14, FortiManager 6.4 all versions, FortiManager Cloud 7.6.2 through 7.6.3, FortiManager Cloud 7.4.1 through 7.4.7, FortiManager Cloud 7.2.1 through 7.2.10, FortiManager Cloud 7.0.1 through 7.0.14, FortiManager Cloud 6.4 all versions may allow a remote authenticated read-only admin with CLI access to escalate their privilege via use of a hidden command.

A Stack-based Buffer Overflow vulnerability [CWE-121] in FortiManager fgtupdates service may allow a remote unauthenticated attacker to execute unauthorized commands via crafted requests, if the service is enabled. The success of the attack depends on the ability to bypass the stack protection mechanisms.

An Inclusion of Undocumented Features [CWE-1242] in FortiManager and FortiAnalyzer CLI may allow a remote authenticated read-only admin with CLI access to escalate their privilege via use of a hidden command.

A Stack-based Buffer Overflow vulnerability [CWE-121] in FortiManager fgtupdates service may allow a remote unauthenticated attacker to execute unauthorized commands via crafted requests, if the service is enabled. The success of the attack depends on the ability to bypass the stack protection mechanisms.

Multiple improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiManager, FortiAnalyzer versions 7.4.0 through 7.4.2 7.2.0 through 7.2.5 and 7.0.0 through 7.0.12 and 6.4.0 through 6.4.14 and 6.2.0 through 6.2.12 and 6.0.0 through 6.0.12 and 5.6.0 through 5.6.11 and 5.4.0 through 5.4.7 and 5.2.0 through 5.2.10 and 5.0.0 through 5.0.12 and 4.3.4 through 4.3.8 allows attacker to execute unauthorized code or commands via crafted CLI requests.

A improper restriction of communication channel to intended endpoints vulnerability [CWE-923] in Fortinet FortiOS version 7.4.0 through 7.4.4, 7.2.0 through 7.2.8, 7.0.0 through 7.0.15, 6.4.0 through 6.4.15 and before 6.2.16, Fortinet FortiProxy version 7.4.0 through 7.4.2, 7.2.0 through 7.2.9 and before 7.0.15, Fortinet FortiManager version 7.4.0 through 7.4.2, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.14 and before 6.2.13, Fortinet FortiAnalyzer version 7.4.0 through 7.4.2, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.14 and before 6.2.13, Fortinet FortiVoice version 7.0.0 through 7.0.2 before 6.4.8 and Fortinet FortiWeb before 7.4.2 may allow an unauthenticated attacker in a man-in-the-middle position to impersonate the management device (FortiCloud server or/and in certain conditions, FortiManager), via intercepting the FGFM authentication request between the management device and the managed device

A heap-based buffer overflow vulnerability [CWE-122] in FortiOS, FortiManager, FortiAnalyzer, FortiManager Cloud, FortiAnalyzer Cloud, FortiProxy fgfmd daemon may allow an authenticated attacker to execute arbitrary code or commands via specifically crafted requests.

An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] in FortiOS, FortiManager, FortiAnalyzer, FortiProxy, FortiSwitchManager, FortiWeb may allow an attacker with a FortiCloud account and a registered device to log into other devices registered to other accounts, if FortiCloud SSO authentication is enabled on those devices.Please note that the FortiCloud SSO login feature is not enabled in default factory settings. However, when an administrator registers the device to FortiCare from the device's GUI, unless the administrator disables the toggle switch "Allow administrative login using FortiCloud SSO" in the registration page, FortiCloud SSO login is enabled upon registration. This vulnerability was found being exploited in the wild by two malicious FortiCloud accounts, which were locked out on 2026-01-22. In order to protect its customers from further exploit, Fortinet disabled FortiCloud SSO on FortiCloud side on 2026-01-26. It was re-enabled on 2026-01-27 and no longer supports login from devices running vulnerable versions. Consequently, customers must upgrade to the latest versions listed below for the FortiCloud SSO authentication to function.FortiManager Cloud, FortiAnalyzer Cloud, FortiGate Cloud are NOT impacted.Setups with Custom IdP for SSO instead of FortiCloud are not impacted (including setups using FortiAuthenticator as the Custom IdP)

A use of externally-controlled format string vulnerability [CWE-134] in FortiManager, FortiAnalyzer, FortiAnalyzer-BigData & FortiPortal may allow a privileged attacker to execute unauthorized code or commands via specially crafted command arguments.

A key management error vulnerability [CWE-320] in FortiManager, FortiAnalyzer and FortiPortal may allow an authenticated admin to retrieve a certificate's private key via the device's admin shell.

An improper neutralization of special elements used in an os command ('OS Command Injection') vulnerability [CWE-78] in FortiManager & FortiAnalyzer version 7.4.0, version 7.2.0 through 7.2.3, version 7.0.0 through 7.0.8, version 6.4.0 through 6.4.12 and version 6.2.0 through 6.2.11 may allow a local attacker with low privileges to execute unauthorized code via specifically crafted arguments to a CLI command

An improper access control vulnerability [CWE-284] in FortiManager management interface 7.2.0 through 7.2.2, 7.0.0 through 7.0.7, 6.4.0 through 6.4.11, 6.2 all versions, 6.0 all versions may allow a remote and authenticated attacker with at least "device management" permission on his profile and belonging to a specific ADOM to add and delete CLI script on other ADOMs

An improper neutralization of special elements used in an OS Command ('OS Command Injection') vulnerability [CWE-78 ] in FortiManager 7.2.0 through 7.2.2, 7.0.0 through 7.0.7, 6.4.0 through 6.4.11, 6.2 all versions, 6.0 all versions, FortiAnalyzer 7.2.0 through 7.2.2, 7.0.0 through 7.0.7, 6.4.0 through 6.4.11, 6.2 all versions, 6.0 all versions and FortiADC  7.1.0, 7.0.0 through 7.0.3, 6.2 all versions, 6.1 all versions, 6.0 all versions management interface may allow an authenticated attacker with at least READ permissions on system settings to execute arbitrary commands on the underlying shell due to an unsafe usage of the wordexp function.

A key management error vulnerability [CWE-320] in FortiManager, FortiAnalyzer and FortiPortal may allow an authenticated admin to retrieve a certificate's private key via the device's admin shell.

A improper restriction of communication channel to intended endpoints vulnerability [CWE-923] in Fortinet FortiOS version 7.4.0 through 7.4.3, 7.2.0 through 7.2.7, 7.0.0 through 7.0.14, 6.4.0 through 6.4.15 and 6.2.0 through 6.2.16, Fortinet FortiProxy version 7.4.0 through 7.4.2, 7.2.0 through 7.2.9, 7.0.0 through 7.0.15 and 2.0.0 through 2.0.14, Fortinet FortiManager version 7.4.0 through 7.4.2, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.14 and 6.2.0 through 6.2.13, Fortinet FortiAnalyzer version 7.4.0 through 7.4.2, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.14 and 6.2.0 through 6.2.13, Fortinet FortiVoice version 7.0.0 through 7.0.2, 6.4.0 through 6.4.8 and 6.0.0 through 6.0.12 and Fortinet FortiWeb version 7.4.0 through 7.4.2, 7.2.0 through 7.2.10, 7.0.0 through 7.0.10 allows an unauthenticated attacker in a man-in-the-middle position to impersonate the management device (FortiCloud server or/and in certain conditions, FortiManager), via intercepting the FGFM authentication request between the management device and the managed device

A use of hard-coded cryptographic key to encrypt sensitive data vulnerability [CWE-321] in FortiManager 7.6.0 through 7.6.1, 7.4.0 through 7.4.5, 7.2.0 through 7.2.9, 7.0 all versions, 6.4 all versions may allow an attacker with JSON API access permissions to decrypt some secrets even if the 'private-data-encryption' setting is enabled.

Two improper neutralization of special elements used in an SQL Command ('SQL Injection') vulnerability [CWE-89] in FortiAnalyzer, FortiManager & FortiAnalyzer-BigData may allow a privileged attacker to execute unauthorized code or commands via specifically crafted CLI requests.

An improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability [CWE-22] in FortiManager and FortiAnalyzer CLI may allow any authenticated admin user with diagnose privileges to delete any file on the system.

An insertion of sensitive information into log file vulnerabilities [CWE-532] in FortiAnalyzer and FortiManager eventlog may allow any low privileged user with access to event log section to retrieve certificate private key and encrypted password logged as system log.

An Improper Output Neutralization for Logs vulnerability [CWE-117] in FortiAnalyzer version 7.6.1 and below, version 7.4.5 and below, version 7.2.8 and below, version 7.0.13 and below and FortiManager version 7.6.1 and below, version 7.4.5 and below, version 7.2.8 and below, version 7.0.12 and below may allow an unauthenticated remote attacker to pollute the logs via crafted login requests.

An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] in FortiAnalyzer, FortiManager, FortiAnalyzer BigData, FortiAnalyzer Cloud and FortiManager Cloud GUI may allow an authenticated privileged attacker to execute unauthorized code or commands via crafted HTTPS or HTTP requests.