Where
-Infinity
0
Severity
7.8
Buffer Overflow
AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:U/RC:C

A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiExtender 7.6.0 through 7.6.1, FortiExtender 7.4.0 through 7.4.6, FortiExtender 7.2 all versions, FortiExtender 7.0 all versions may allow an authenticated user to execute arbitrary code or commands via crafted CLI commands.

1 / 2
Source: MITRE

Remedy

Upgrade to FortiExtender version 7.6.3 or above Upgrade to FortiExtender version 7.4.8 or above
First published (updated )
Severity
7.2
Command Injection, OS Command Injection
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiExtender 7.6.0 through 7.6.3, FortiExtender 7.4.0 through 7.4.7, FortiExtender 7.2 all versions, FortiExtender 7.0 all versions may allow an authenticated attacker to execute unauthorized code or commands via a specific HTTP request.

1 / 2
Source: MITRE

Remedy

Upgrade to FortiExtender version 7.6.4 or above Upgrade to FortiExtender version 7.4.8 or above
First published (updated )
Severity
5.5
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:U/RC:C

A debug messages revealing unnecessary information vulnerability in Fortinet FortiExtender 7.6.0 through 7.6.1, FortiExtender 7.4.0 through 7.4.6, FortiExtender 7.2 all versions, FortiExtender 7.0 all versions may allow an authenticated user to obtain administrator credentials via debug log commands.

1 / 2
Source: MITRE

Remedy

Upgrade to FortiExtender version 7.6.3 or above Upgrade to FortiExtender version 7.4.8 or above
First published (updated )
Severity
9
Command Injection, OS Command Injection
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

An OS command injection vulnerability in FortiExtender 4.1.0 to 4.1.1, 4.0.0 and below under CLI admin console may allow unauthorized administrators to run arbitrary system level commands via specially crafted "execute date" commands.

First published (updated )
Severity
9
OS Command Injection, Command Injection
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

A improper neutralization of special elements used in a command ('command injection') in Fortinet FortiExtender version 7.0.1 and below, 4.2.3 and below, 4.1.7 and below allows an authenticated attacker to execute privileged shell commands via CLI commands including special characters

1 / 2
First published (updated )
Severity
7.4
Command Injection
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C

An improper neutralization of special elements used in a command vulnerability ('Command Injection') [CWE-77] in FortiExtender may allow an authenticated user to raise its privileges to admin user via crafted arguments of the execute CLI command.

First published (updated )
Advisory
FG-IR-21-148
Severity
7.2
OS Command Injection, Command Injection
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiExtender 7.0.0 through 7.0.3, 5.3.2, 4.2.4 and below allows attacker to execute unauthorized code or commands via crafted HTTP requests.

Remedy

Upgrade to FortiExtender version 7.2.0 and above Upgrade to FortiExtender version 7.0.4 and above Upgrade to FortiExtender upcoming version 4.2.5 and above Upgrade to FortiExtender upcoming version 4.1.9 and above Upgrade to FortiExtender upcoming version 4.0.3 and above Upgrade to FortiExtender version 3.3.3 and above Upgrade to FortiExtender version 3.2.4 and above
First published (updated )
Severity
7.5
Path Traversal
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

An improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability [CWE-22] in FortiExtender management interface 7.0.0 through 7.0.3, 4.2.0 through 4.2.4, 4.1.1 through 4.1.8, 4.0.0 through 4.0.2, 3.3.0 through 3.3.2, 3.2.1 through 3.2.3, 5.3 all versions may allow an unauthenticated and remote attacker to retrieve arbitrary files from the underlying filesystem via specially crafted web requests.

Remedy

Please upgrade to FortiExtender version 7.2.0 or above Please upgrade to FortiExtender version 7.0.4 or above Please upgrade to FortiExtender version 4.2.5 or above Please upgrade to FortiExtender version 4.1.9 or above Please upgrade to FortiExtender version 4.0.3 or above Please upgrade to FortiExtender version 3.3.3 or above Please upgrade to FortiExtender version 3.2.4 or above
First published (updated )
Severity
8.1
Race Condition
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X

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.

First published (updated )
Advisory
FG-IR-24-258
Severity
6.1
Buffer Overflow
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:X/RC:X

CVE-2023-38545: severity HIGH (affects both libcurl and the curl tool)A heap-based buffer overflow flaw was found in the SOCKS5 proxy handshake in the Curl package. If Curl is unable to resolve the address itself, it passes the hostname to the SOCKS5 proxy. However, the maximum length of the hostname that can be passed is 255 bytes. If the hostname is longer, then Curl switches to the local name resolving and passes the resolved address only to the proxy. The local variable that instructs Curl to "let the host resolve the name" could obtain the wrong value during a slow SOCKS5 handshake, resulting in the too-long hostname being copied to the target buffer instead of the resolved address, which was not the intended behavior.https://curl.se/docs/CVE-2023-38545.html## CVE-2023-38546: severity LOW (affects libcurl only, not the tool)A flaw was found in the Curl package. This flaw allows an attacker to insert cookies into a running program using libcurl if the specific series of conditions are met.https://curl.se/docs/CVE-2023-38546.html

First published (updated )
Advisory
FG-IR-23-385
Severity
8.8
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:X/RC:X

An improper access control in Fortinet FortiExtender 4.1.1 - 4.1.9, 4.2.0 - 4.2.6, 5.3.2, 7.0.0 - 7.0.4, 7.2.0 - 7.2.4 and 7.4.0 - 7.4.2 allows an attacker to create users with elevated privileges via a crafted HTTP request.

1 / 2
Source: MITRE

Remedy

Please upgrade to FortiExtender version 7.4.3 or above Please upgrade to FortiExtender version 7.2.5 or above Please upgrade to FortiExtender version 7.0.5 or above
First published (updated )
Severity
8.1
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:X/RC:X

An improper access control vulnerability [CWE-284] in FortiExtender authentication component may allow a remote authenticated attacker to create users with elevated privileges via a crafted HTTP request.

First published (updated )
Advisory
FG-IR-23-459

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203