Vulnerabilities > Zyxel > High
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2023-11-30 | CVE-2023-35137 | Unspecified vulnerability in Zyxel Nas326 Firmware and Nas542 Firmware An improper authentication vulnerability in the authentication module of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to obtain system information by sending a crafted URL to a vulnerable device. | 7.5 |
| 2023-11-28 | CVE-2023-4398 | Unspecified vulnerability in Zyxel ZLD 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 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions on an affected device by sending a crafted IKE packet. | 7.5 |
| 2023-07-17 | CVE-2023-34139 | OS Command Injection vulnerability in Zyxel products 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 affected device. | 8.8 |
| 2023-05-30 | CVE-2023-27988 | OS Command Injection vulnerability in Zyxel Nas326 Firmware, Nas540 Firmware and Nas542 Firmware The post-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.13)C0 could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device remotely. | 7.2 |
| 2023-05-01 | CVE-2023-22919 | OS Command Injection vulnerability in Zyxel Nbg6604 Firmware 1.01(Abir.0)C0 The post-authentication command injection vulnerability in the Zyxel NBG6604 firmware version V1.01(ABIR.0)C0 could allow an authenticated attacker to execute some OS commands remotely by sending a crafted HTTP request. | 8.8 |
| 2023-05-01 | CVE-2023-22921 | Cross-site Scripting vulnerability in Zyxel Nbg-418N Firmware 1.00(Aadz.3)C0/1.00(Aarp.10)C0/1.00(Aarp.13)C0 A cross-site scripting (XSS) vulnerability in the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote authenticated attacker with administrator privileges to store malicious scripts using a web management interface parameter, resulting in denial-of-service (DoS) conditions on an affected device. | 7.5 |
| 2023-05-01 | CVE-2023-22922 | Classic Buffer Overflow vulnerability in Zyxel Nbg-418N Firmware 1.00(Aadz.3)C0/1.00(Aarp.10)C0/1.00(Aarp.13)C0 A buffer overflow vulnerability in the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote unauthenticated attacker to cause DoS conditions by sending crafted packets if Telnet is enabled on a vulnerable device. | 7.5 |
| 2023-04-27 | CVE-2023-28770 | Information Exposure Through Discrepancy vulnerability in Zyxel Dx5401-B0 Firmware The sensitive information exposure vulnerability in the CGI “Export_Log” and the binary “zcmd” in Zyxel DX5401-B0 firmware versions prior to V5.17(ABYO.1)C0 could allow a remote unauthenticated attacker to read the system files and to retrieve the password of the supervisor from the encrypted file. | 7.5 |
| 2023-04-24 | CVE-2023-27991 | OS Command Injection vulnerability in Zyxel products The post-authentication command injection vulnerability in the CLI command of Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow an authenticated attacker to execute some OS commands remotely. | 8.8 |
| 2023-04-24 | CVE-2023-22913 | Command Injection vulnerability in Zyxel products A post-authentication command injection vulnerability in the “account_operator.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote authenticated attacker to modify device configuration data, resulting in denial-of-service (DoS) conditions on an affected device. | 8.1 |