Zyxel NAS Firmware 5.21- Remote Code Execution

Multiple Zyxel network-attached storage NAS devices running firmware version 5.21 contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable device. Zyxel NAS devices achieve authentication by using th...

Zyxel ZyWALL 2 Plus Internet Security Appliance - Cross-Site Scripting

ZyXEL ZyWALL 2 Plus Internet Security Appliance contains a cross-site scripting vulnerability. Insecure URI handling leads to bypass of security restrictions, which allows an attacker to execute arbitrary JavaScript codes to perform multiple attacks. id: CVE-2021-46387 info: name: Zyxel ZyWALL 2...

Zyxel ZyWal/USG/UAG Devices - Cross-Site Scripting

Zyxel ZyWall, USG, and UAG devices allow remote attackers to inject arbitrary web script or HTML via the errmsg parameter freetimefailed.cgi CGI program, aka reflective cross-site scripting. id: CVE-2019-12581 info: name: Zyxel ZyWal/USG/UAG Devices - Cross-Site Scripting author: n-thumann...

Zyxel NBG2105 V1.00(AAGU.2)C0 - Authentication Bypass

Zyxel NBG2105 V1.00AAGU.2C0 devices are susceptible to authentication bypass vulnerabilities because setting the login cookie to 1 provides administrator access. id: CVE-2021-3297 info: name: Zyxel NBG2105 V1.00AAGU.2C0 - Authentication Bypass author: gy741 severity: high description: Zyxel NBG21...

Zyxel - Authentication Bypass

An authentication bypass vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.20 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.32 through 5.20, VPN series firmware versions 4.30 through 5.20, and NSG series firmware...

ZyXel USG - Hardcoded Credentials

A hardcoded credential vulnerability was identified in the 'zyfwp' user account in some Zyxel firewalls and AP controllers. The account was designed to deliver automatic firmware updates to connected access points through FTP. id: CVE-2020-29583 info: name: ZyXel USG - Hardcoded Credentials autho...

Zyxel - Cross-Site Scripting

Zyxel ATP200, ATP500, ATP800, USG20-VPN, USG20W-VPN, USG40, USG40W, USG60, USG60W, USG110, USG210, USG310, USG1100, USG1900, USG2200-VPN, ZyWALL 110, ZyWALL 310, and ZyWALL 1100 devices contain a reflected cross-site scripting vulnerability on the security firewall login page via the mpidx...

Zyxel NAS326 Firmware < V5.21(AAZF.17)C0 - Command Injection

The command injection vulnerability in the “setCookie” parameter in Zyxel NAS326 firmware versions before V5.21AAZF.17C0 and NAS542 firmware versions before V5.21ABAG.14C0 could allow an unauthenticated attacker to execute some operating system OS commands by sending a crafted HTTP POST request...

Zyxel VMG1312-B10D 5.13AAXA.8 - Local File Inclusion

Zyxel VMG1312-B10D 5.13AAXA.8 is susceptible to local file inclusion. A remote unauthenticated attacker can send a specially crafted URL request containing "dot dot" sequences /../, conduct directory traversal attacks, and view arbitrary files. id: CVE-2018-19326 info: name: Zyxel VMG1312-B10D...

Zyxel ZyWall UAG/USG - Account Creation Access

Zyxel UAG, USG, and ZyWall devices allows a remote attacker to generate guest accounts by directly accessing the account generator via the "Free Time" component. This can lead to unauthorized network access or DoS attacks. id: CVE-2019-12583 info: name: Zyxel ZyWall UAG/USG - Account Creation...

Zyxel NAS326 Firmware < V5.21(AAZF.17)C0 - NsaRescueAngel Backdoor Account

The command injection vulnerability in the CGI program "remotehelp-cgi" in Zyxel NAS326 firmware versions before V5.21AAZF.17C0 and NAS542 firmware versions before V5.21ABAG.14C0 could allow an unauthenticated attacker to execute some operating system OS commands by sending a crafted HTTP POST...

CVE-2022-30525_Exploit

CVE-2022-30525 Zyxel Firewall Remote Command Injection A python based exploit for CVE-2022-30525 Vulnerability Summary NIST An OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100W firmware versions 5.00 up to and including 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 ...

Zyxel USG FLEX 50(W) / USG20(W)-VPN 4.16 < 5.43 / ATP 4.32 < 5.43 / USG FLEX 4.50 < 5.43 Path Traversal

The firmware version of the Zyxel ZLD firewall device is affected by a path traversal vulnerability. A path traversal vulnerability in the CLI command used to execute configuration files in Zyxel ATP series firmware versions from V4.32 through V5.42 Patch 1, USG FLEX series firmware versions from...

CVE-2026-6374

Use of Hard-coded Credentials vulnerability in Zyxel Networks WAH7601 allows Read Sensitive Constants Within an Executable. This issue affects WAH7601: through 20.07.2026...

CVE-2026-6373

Exposure of sensitive system information to an unauthorized control sphere vulnerability in Zyxel Networks WAH7601 allows Web Application Fingerprinting. This issue affects WAH7601: through 20072026...

CVE-2026-13206

Improper neutralization of special elements used in an OS command 'OS command injection' vulnerability in Zyxel Networks WAH7601 allows OS Command Injection. This issue affects WAH7601: through 20072026...

CVE-2026-12984

Insufficiently Protected Credentials vulnerability in Zyxel Networks WAH7601 allows Retrieve Embedded Sensitive Data. This issue affects WAH7601: through 20072026...

CVE-2026-12984

Insufficiently Protected Credentials vulnerability in Zyxel Networks WAH7601 allows Retrieve Embedded Sensitive Data. This issue affects WAH7601: through 20072026...

CVE-2026-12984

CVE-2026-12984 concerns Zyxel Networks WAH7601 (affected through 20072026). The vulnerability is described as Insufficiently Protected Credentials that allows retrieval of embedded sensitive data. Connected documents confirm the affected product and the core impact, but do not provide detailed ro...

CVE-2026-12984 Exposure of Sensitive Information to an Unauthorized Actor in Zyxel's WAH7601

Insufficiently Protected Credentials vulnerability in Zyxel Networks WAH7601 allows Retrieve Embedded Sensitive Data. This issue affects WAH7601: through 20072026...