CVE-2023-6397

A null pointer dereference vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 and USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 could allow a LAN-based attacker to cause denial-of-service DoS conditions by downloading a crafted RAR compressed fil...

CVE-2023-6397

A null pointer dereference vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 and USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 could allow a LAN-based attacker to cause denial-of-service DoS conditions by downloading a crafted RAR compressed fil...

CVE-2023-6397

A null pointer dereference in Zyxel ATP series firmware 4.32–5.37 Patch 1 and USG FLEX series firmware 4.50–5.37 Patch 1, within the Anti-Malware feature, can allow a LAN-based attacker to cause DoS by sending a crafted RAR file to a LAN-side host. Affected products: Zyxel ATP and USG FLEX. Impac...

Zyxel parse_config.py Command Injection

This module exploits vulnerabilities in multiple Zyxel devices including the VPN, USG and APT series. The affected firmware versions depend on the device module, see this module's documentation for more details. Note this module was unable to be tested against a real Zyxel device and was tested...

PT-2023-8710 · Zyxel · Zyxel Atp Series +3

Name of the Vulnerable Software and Affected Versions: Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 Zyxel USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 Zyxel USG FLEX 50W series firmware versions from 4.16 through 5.37 Patch 1 Zyxel USG20W-VPN series firmwa...

The vulnerability of the account_print.cgi component in the microprogramming software for Zyxel USG FLEX and VPN devices allows a hacker to execute arbitrary commands.

The vulnerability of the accountprint.cgi component in the Zyxel USG FLEX and VPN network devices is related to an incorrect limitation on the path name to the tmp directory. Exploiting this vulnerability allows a remote attacker to execute arbitrary commands...

The vulnerability of the fbwifi_forward.cgi component of the Zyxel USG FLEX, USG FLEX 50(W), USG20(W)-VPN, and VPN network devices allows a hacker to cause service interruptions.

The vulnerability of the fbwififorward.cgi component of the Zyxel USG FLEX, USG FLEX 50W, USG20W-VPN, and VPN networking devices is related to the output of operations that go beyond the buffer in memory. Exploiting this vulnerability could allow a malicious actor to cause service interruptions b...

Vulnerabilities fixed in Zyxel products

Zyxel has fixed vulnerabilities in the firmware of several ATP and USG series firewalls. A malicious party could exploit them to launch attacks that can result in the following categories of damage: Cross-Site Scripting XSS Denial-of-Service DoS. Manipulation of data Access to system data...

The vulnerability of the command-line interface (CLI) of microprogramming software for network devices such as ZyXEL VPN, USG FLEX, and ATP allows a intruder to gain unauthorized access to protected information.

The vulnerability of the command-line interface CLI of microprogrammed network devices such as ZyXEL VPN, USG FLEX, and ATP is related to deficiencies in access control. Exploiting this vulnerability can allow an intruder to gain unauthorized access to protected information...

The vulnerability of the microprogrammed software of ZyXEL USG FLEX and ATP devices, related to the operation of writing data beyond the buffer in memory, allows a intruder to cause service failure.

The vulnerability of the microprogrammed network device software of ZyXEL USG FLEX and ATP lies in the execution of operations beyond the buffer boundaries in memory. Exploiting this vulnerability can allow an attacker to cause a service failure by executing certain commands...

The vulnerability of the Wi-Fi hotspot implementation of the microprogramming software for network devices ZyXEL USG FLEX and VPN allows a intruder to gain unauthorized access to protected information.

The vulnerability of the Wi-Fi hotspot technology implemented in ZyXEL USG FLEX and VPN network devices is related to deficiencies in access control. Exploiting this vulnerability can allow attackers to gain unauthorized access to protected information...

The vulnerability of the microprogrammed software of ZyXEL VPN, USG FLEX, and ATP lies in the fact that operation outputs go beyond the buffer in memory, allowing a intruder to cause a service failure.

The vulnerability of the microprogrammed network devices ZyXEL VPN, USG FLEX, and ATP lies in the fact that the operation values escape outside the buffer in memory. Exploiting this vulnerability can allow an attacker to cause a service failure by executing a command to flush system logs...

PT-2023-8707 · Zyxel · Zyxel Usg Flex Series +1

Name of the Vulnerable Software and Affected Versions: Zyxel ATP series versions 4.32 through 5.37 Patch 1 Zyxel USG FLEX series versions 4.50 through 5.37 Patch 1 Description: A null pointer dereference issue in the Anti-Malware feature of Zyxel ATP and USG FLEX series firmware could allow a...

PT-2023-8709 · Zyxel · Zyxel Usg Flex Series +3

Name of the Vulnerable Software and Affected Versions: Zyxel ATP series versions 4.32 through 5.37 Patch 1 Zyxel USG FLEX series versions 4.50 through 5.37 Patch 1 Zyxel USG FLEX 50W series versions 4.16 through 5.37 Patch 1 Zyxel USG20W-VPN series versions 4.16 through 5.37 Patch 1 Zyxel USG FLE...

Zyxel USG / VPN < 5.37 Privilege Management

Firmware version of the Zyxel USG or VPN device is less than 5.37. This means the Zyxel device is vulnerable to the following privilege management vulnerability: - An improper privilege management vulnerability in the hotspot feature could allow an authenticated local attacker to access the syste...

CVE-2023-5797

An improper privilege management vulnerability in the debug CLI command of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50W series firmware versions 4.16 through 5.37, USG20W-VPN series firmware versions 4.16 through 5.37,...

CVE-2023-5960

An improper privilege management vulnerability in the hotspot feature of the Zyxel USG FLEX series firmware versions 4.50 through 5.37 and VPN series firmware versions 4.30 through 5.37 could allow an authenticated local attacker to access the system files on an affected device...

CVE-2023-5797

An improper privilege management vulnerability in the debug CLI command of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50W series firmware versions 4.16 through 5.37, USG20W-VPN series firmware versions 4.16 through 5.37,...

Privilege escalation

An improper privilege management vulnerability in the hotspot feature of the Zyxel USG FLEX series firmware versions 4.50 through 5.37 and VPN series firmware versions 4.30 through 5.37 could allow an authenticated local attacker to access the system files on an affected device...

Privilege escalation

An improper privilege management vulnerability in the debug CLI command of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50W series firmware versions 4.16 through 5.37, USG20W-VPN series firmware versions 4.16 through 5.37,...