Zyxel ATP Code Issue Vulnerability

Zyxel ATP is a firewall from China-based Zyxel. A code issue exists in Zyxel ATP firmware versions 4.32 through 5.37 Patch 1 that exploits a vulnerability that could allow a LAN-based attacker to cause a denial of service by downloading a crafted RAR compressed file to a host on the LAN side...

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...

Zyxel ATP Formatting String Error Vulnerability

Zyxel ATP is a firewall from China-based Zyxel. A formatting string error vulnerability exists in Zyxel ATP firmware versions 4.32 through 5.37 Patch 1, which originates from allowing authenticated IPSec VPN users to cause a denial of service to the deviceid daemon by sending a crafted hostname t...

CVE-2023-6764: Use of Externally-Controlled Format String

A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50W series firmware versions from 4.16 through 5.37 Patch 1, and USG20W-VPN series...

CVE-2023-6399: Use of Externally-Controlled Format String

A format string vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50W series firmware versions from 4.16 through 5.37 Patch 1, USG20W-VPN series firmware versions from 4.16 through 5.37...

CVE-2023-6397: NULL Pointer Dereference

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-2023-6398: Improper Neutralization of Special Elements used in an OS Command

A post-authentication command injection vulnerability in the file upload binary in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50W series firmware versions from 4.16 through 5.37 Patch 1, USG20W-VPN...

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...

ZyXEL USG FLEX ATP Buffer Overflow DoS

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...

CLI Unauthorized Access

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...

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...

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...

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...

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-2023-5650

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-2023-4398

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-2023-35136

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...