CVE-2025-11730

A post‑authentication command injection vulnerability in the Dynamic DNS DDNS configuration CLI command in Zyxel ATP series firmware versions from V5.35 through V5.41, USG FLEX series firmware versions from V5.35 through V5.41, USG FLEX 50W series firmware versions from V5.35 through V5.41, and...

CVE-2025-8078

CVE-2025-8078 describes a post-authentication command-injection vulnerability in Zyxel devices: Zyxel ATP series firmware v4.32–v5.40, USG FLEX series v4.50–v5.40, USG FLEX 50(W) series v4.16–v5.40, and USG20(W)-VPN series v4.16–v5.40. An authenticated administrator can pass a crafted string as a...

PT-2025-42828

Name of the Vulnerable Software and Affected Versions Zyxel ATP series versions V4.32 through V5.40 Zyxel USG FLEX series versions V4.50 through V5.40 Zyxel USG FLEX 50W series versions V4.16 through V5.40 Zyxel USG20W-VPN series versions V4.16 through V5.40 Description A missing authorization fl...

CVE-2024-42061

A reflected cross-site scripting XSS vulnerability in the CGI program "dynamicscript.cgi" of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50W series firmware versions from V4.16 through V5.38, and USG20W-VPN seri...

CVE-2024-42061

A reflected cross-site scripting XSS vulnerability in the CGI program "dynamicscript.cgi" of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50W series firmware versions from V4.16 through V5.38, and USG20W-VPN seri...

CVE-2024-42059

A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V5.00 through V5.38, USG FLEX series firmware versions from V5.00 through V5.38, USG FLEX 50W series firmware versions from V5.00 through V5.38, and USG20W-VPN series firmware versions from V5.00...

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...

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...

Zyxel Firewall SUID Binary Privilege Escalation

This module exploits CVE-2022-30526, a local privilege escalation vulnerability that allows a low privileged user e.g. nobody escalate to root. The issue stems from a suid binary that allows all users to copy files as root. This module overwrites the firewall's crontab to execute an attacker...

Zyxel Firewall SUID Binary Privilege Escalation

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Zyxel Firewall SUID Binary Privilege Escalation', 'Description' = %q This module exploits CVE-2022-30526, a local privilege escalation...

Zyxel Firewall ZTP Unauthenticated Command Injection Exploit

This Metasploit module exploits CVE-2022-30525, an unauthenticated remote command injection vulnerability affecting Zyxel firewalls with zero touch provisioning ZTP support. By sending a malicious setWanPortSt command containing an mtu field with a crafted OS command to the /ztp/cgi-bin/handler...

Zyxel Firewall ZTP Unauthenticated Command Injection

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Zyxel Firewall ZTP Unauthenticated Command Injection', 'Description' = %q This module exploits CVE-2022-30525, an unauthenticated remote command...

Zyxel Firewall ZTP Unauthenticated Command Injection

This module exploits CVE-2022-30525, an unauthenticated remote command injection vulnerability affecting Zyxel firewalls with zero touch provisioning ZTP support. By sending a malicious setWanPortSt command containing an mtu field with a crafted OS command to the /ztp/cgi-bin/handler page, an...

Zyxel Gateway / Access Point External DNS Request Vulnerability

Some Zyxel Access Points are prone to an information disclosure vulnerability where external DNS requests can be made. This VT has been deprecated and replaced by various device specific VTs. SPDX-FileCopyrightText: 2019 Greenbone AG Some text descriptions might be excerpted from a referenced...

CVE-2019-9955

Zyxel devices including ATP200/ATP500/ATP800, USG and ZyWALL series (e.g., USG20-VPN/USG1100/USG1900/ ZyWALL 110/310) are affected by CVE-2019-9955. The vulnerability is a reflected Cross-Site Scripting flaw on the security firewall login page caused by unsanitized mp_idx parameter in weblogin.cg...