Zyxel ATP Security Vulnerability

The Zyxel ATP is a firewall from China's Heqin Zyxel. A security vulnerability exists in Zyxel ATP firmware versions 4.32 through 5.37 Patch 1, which originates from a vulnerability that could allow an authenticated attacker to execute certain operating system commands on the affected device via...

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...

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...

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 / ATP / VPN < 5.37 XSS

Firmware version of the Zyxel USG, ATP, or VPN is less than 5.37. This means the Zyxel device is vulnerable to the following cross-site scripting vulnerability: - A cross-site scripting XSS vulnerability in the CGI program could allow an unauthenticated LAN-based attacker to store malicious scrip...

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-2023-5797

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 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-2023-4398

An integer overflow vulnerability in the source code of the QuickSec IPSec toolkit used in the VPN feature 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...

CVE-2023-5650

An improper privilege management vulnerability in the ZySH 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, and VPN seri...

CVE-2023-4397

A buffer overflow vulnerability in the Zyxel ATP series firmware version 5.37, USG FLEX series firmware version 5.37, USG FLEX 50W series firmware version 5.37, and USG20W-VPN series firmware version 5.37, could allow an authenticated local attacker with administrator privileges to cause...

CVE-2023-35139

A cross-site scripting XSS vulnerability in the CGI program of the Zyxel ATP series firmware versions 5.10 through 5.37, USG FLEX series firmware versions 5.00 through 5.37, USG FLEX 50W series firmware versions 5.10 through 5.37, USG20W-VPN series firmware versions 5.10 through 5.37, and VPN...

CVE-2023-37925

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-2023-35136

An improper input validation vulnerability in the “Quagga” package 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, and...

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,...

Buffer overflow

A buffer overflow vulnerability in the Zyxel ATP series firmware version 5.37, USG FLEX series firmware version 5.37, USG FLEX 50W series firmware version 5.37, and USG20W-VPN series firmware version 5.37, could allow an authenticated local attacker with administrator privileges to cause...

Input validation

An improper input validation vulnerability in the “Quagga” package 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, and...