Zyxel ATP Input Validation Error Vulnerability

Zyxel ATP is a firewall from China-based Heqin Zyxel. The Zyxel ATP suffers from an input validation error vulnerability that stems from an incorrect input validation vulnerability in the Quagga program package, which allows an authenticated, local attacker to access configuration files on the...

CVE-2023-35139: Improper Neutralization of Input During Web Page Generation

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-2023-35136: Improper 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...

CVE-2023-5797: Improper Privilege Management

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-2023-37926: Buffer Copy without Checking Size of Input

A buffer overflow vulnerability in 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 series firmware versions 4.30...

CVE-2023-5650: Improper Privilege Management

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: Buffer Copy without Checking Size of Input

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-2023-5960: Improper Privilege Management

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-2023-37925: Improper Privilege Management

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,...

Zyxel USG FLEX Security Vulnerability

Zyxel USG FLEX is a firewall from China Hopkins Zyxel. Offering flexible VPN options IPsec, SSL or L2TP, it provides flexible and secure remote access for remote work and management. A security vulnerability exists in Zyxel USG FLEX series firmware versions 4.50 to 5.37, VPN series firmware...

PT-2023-7186 · Zyxel · Zyxel Usg Flex Series +5

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

PT-2023-7252 · Zyxel · Zyxel Vpn +1

Name of the Vulnerable Software and Affected Versions: Zyxel USG FLEX series firmware versions 4.50 through 5.37 Zyxel VPN series firmware versions 4.30 through 5.37 Description: The issue is related to improper privilege management in the hotspot feature of the affected devices. This could allow...

PT-2023-7251 · Zyxel · Zyxel Usg Flex Series +3

Name of the Vulnerable Software and Affected Versions: Zyxel ATP series version 5.37 Zyxel USG FLEX series version 5.37 Zyxel USG FLEX 50W series version 5.37 Zyxel USG20W-VPN series version 5.37 Description: A buffer overflow issue in the firmware could allow an authenticated local attacker with...

Zyxel USG FLEX Command Execution

The vulnerability of the Cloud Management mode of Zyxel USG FLEX, USG FLEX 50W, USG20W-VPN, ATP, and VPN software lies in the lack of measures taken to neutralize the special elements used in the operating system. Exploiting this vulnerability allows a remote attacker to execute arbitrary command...

Zyxel USG < 5.37 Command Injection (CVE-2023-28767)

Firmware version of the Zyxel USG, ATP, or VPN is less than 5.37 and is affected by a vulnerability. The configuration parser fails to sanitize user-controlled input. An unauthenticated, LAN-based attacker could leverage the vulnerability to inject some operating system OS commands into the devic...

CVE-2023-34139

A command injection vulnerability in the Free Time WiFi hotspot feature of the Zyxel USG FLEX series firmware versions 4.50 through 5.36 Patch 2 and VPN series firmware versions 4.20 through 5.36 Patch 2, could allow an unauthenticated, LAN-based attacker to execute some OS commands on an affecte...

CVE-2023-34140

A buffer overflow vulnerability in the Zyxel ATP series firmware versions 4.32 through 5.36 Patch 2, USG FLEX series firmware versions 4.50 through 5.36 Patch 2, USG FLEX 50W series firmware versions 4.16 through 5.36 Patch 2, USG20W-VPN series firmware versions 4.16 through 5.36 Patch 2, VPN...

CVE-2023-34141

A command injection vulnerability in the access point AP management feature of the Zyxel ATP series firmware versions 5.00 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50W series firmware versions 5.00 through 5.36 Patch 2, USG20W-VPN series firmware...

CVE-2023-33011

A format string vulnerability in the Zyxel ATP series firmware versions 5.10 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50W series firmware versions 5.10 through 5.36 Patch 2, USG20W-VPN series firmware versions 5.10 through 5.36 Patch 2, and VPN...

CVE-2023-33012

A command injection vulnerability in the configuration parser of the Zyxel ATP series firmware versions 5.10 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50W series firmware versions 5.10 through 5.36 Patch 2, USG20W-VPN series firmware versions 5.10...