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 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 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.
An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability [CWE-78] in FortiManager may allow an authenticated remote attacker to execute unauthorized code via FGFM crafted 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 missing authentication for critical function in Fortinet FortiPortal version 6.0.0 through 6.0.15, FortiManager version 7.4.0 through 7.4.2, 7.2.0 through 7.2.5, 7.0.0 through 7.0.12, 6.4.0 through 6.4.14 allows attacker to access to the configuration of the managed devices by sending specifically crafted packets
A relative path traversal vulnerability [CWE-23] in FortiManager & FortiAnalyzer may allow a privileged attacker with super-admin profile and CLI access to write files on the underlying system via crafted HTTP or HTTPS requests.
A client-side enforcement of server-side security in Fortinet FortiAnalyzer-BigData at least version 7.4.0 and 7.2.0 through 7.2.6 and 7.0.1 through 7.0.6 and 6.4.5 through 6.4.7 and 6.2.5, FortiManager version 7.4.0 through 7.4.1 and 7.2.0 through 7.2.4 and 7.0.0 through 7.0.11 and 6.4.0 through 6.4.14, FortiAnalyzer version 7.4.0 through 7.4.1 and 7.2.0 through 7.2.4 and 7.0.0 through 7.0.11 and 6.4.0 through 6.4.14 allows attacker to improper access control via crafted requests.
A missing authentication for critical function vulnerability [CWE-306] in FortiManager and FortiPortal may allow a remote unauthenticated attacker to extract the configuration of all managed devices
A relative path traversal vulnerability [CWE-23] in FortiManager & FortiAnalyzer may allow a privileged attacker with super-admin profile and CLI access to write files on the underlying system via crafted HTTP or HTTPS requests.
An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability [CWE-78] in FortiManager may allow an authenticated remote attacker to execute unauthorized code via FGFM crafted requests.
A client-side enforcement of server-side security vulnerability [CWE-602] in FortiAnalyzer may allow an authenticated attacker with at least read-only permission to execute sensitive operations via crafted requests.
A missing authentication for critical function vulnerability [CWE-306] in FortiManager fgfmd daemon may allow a remote unauthenticated attacker to execute arbitrary code or commands via specially crafted requests.
Reports have shown this vulnerability to be exploited in the wild.
CVE-2024-6387 A signal handler race condition was found in OpenSSH's server (sshd), where a client does not authenticate within LoginGraceTime seconds (120 by default, 600 in old OpenSSH versions), then sshd's SIGALRM handler is called asynchronously. However, this signal handler calls various functions that are not async-signal-safe, for example, syslog(). This could lead to remote code execution with root privileges.