Vulnerabilities (CVE)

Filtered by vendor Zyxel Subscribe
Total 274 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-35140 1 Zyxel 20 Gs1900-10hp, Gs1900-10hp Firmware, Gs1900-16 and 17 more 2024-02-28 N/A 5.5 MEDIUM
The improper privilege management vulnerability in the Zyxel GS1900-24EP switch firmware version V2.70(ABTO.5) could allow an authenticated local user with read-only access to modify system settings on a vulnerable device.
CVE-2023-22916 1 Zyxel 36 Atp100, Atp100 Firmware, Atp100w and 33 more 2024-02-28 N/A 8.1 HIGH
The configuration parser of Zyxel ATP series firmware versions 5.10 through 5.35, USG FLEX series firmware versions 5.00 through 5.35, USG FLEX 50(W) firmware versions 5.10 through 5.35, USG20(W)-VPN firmware versions 5.10 through 5.35, and VPN series firmware versions 5.00 through 5.35, which fails to properly sanitize user input. A remote unauthenticated attacker could leverage the vulnerability to modify device configuration data, resulting in DoS conditions on an affected device if the attacker could trick an authorized administrator to switch the management mode to the cloud mode.
CVE-2023-28770 1 Zyxel 2 Dx5401-b0, Dx5401-b0 Firmware 2024-02-28 N/A 7.5 HIGH
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.
CVE-2023-27992 1 Zyxel 6 Nas326, Nas326 Firmware, Nas540 and 3 more 2024-02-28 N/A 9.8 CRITICAL
The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, and NAS542 firmware versions prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request.
CVE-2023-27991 1 Zyxel 38 Atp100, Atp100 Firmware, Atp100w and 35 more 2024-02-28 N/A 8.8 HIGH
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.
CVE-2023-22921 1 Zyxel 2 Nbg-418n, Nbg-418n Firmware 2024-02-28 N/A 7.5 HIGH
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.
CVE-2023-22919 1 Zyxel 2 Nbg6604, Nbg6604 Firmware 2024-02-28 N/A 8.8 HIGH
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.
CVE-2023-22914 1 Zyxel 22 Usg Flex 100, Usg Flex 100 Firmware, Usg Flex 100w and 19 more 2024-02-28 N/A 7.2 HIGH
A path traversal vulnerability in the “account_print.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 with administrator privileges to execute unauthorized OS commands in the “tmp” directory by uploading a crafted file if the hotspot function were enabled.
CVE-2023-22915 1 Zyxel 24 Usg 20w-vpn, Usg 20w-vpn Firmware, Usg Flex 100 and 21 more 2024-02-28 N/A 7.5 HIGH
A buffer overflow vulnerability in the “fbwifi_forward.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.30 through 5.35, USG20(W)-VPN firmware versions 4.30 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote unauthenticated attacker to cause DoS conditions by sending a crafted HTTP request if the Facebook WiFi function were enabled on an affected device.
CVE-2022-45853 1 Zyxel 20 Gs1900-10hp, Gs1900-10hp Firmware, Gs1900-16 and 17 more 2024-02-28 N/A 6.7 MEDIUM
The privilege escalation vulnerability in the Zyxel GS1900-8 firmware version V2.70(AAHH.3) and the GS1900-8HP firmware version V2.70(AAHI.3) could allow an authenticated, local attacker with administrator privileges to execute some system commands as 'root' on a vulnerable device via SSH.
CVE-2023-27988 1 Zyxel 6 Nas326, Nas326 Firmware, Nas540 and 3 more 2024-02-28 N/A 7.2 HIGH
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.
CVE-2023-28769 1 Zyxel 2 Dx5401-b0, Dx5401-b0 Firmware 2024-02-28 N/A 9.8 CRITICAL
The buffer overflow vulnerability in the library “libclinkc.so” of the web server “zhttpd” in Zyxel DX5401-B0 firmware versions prior to V5.17(ABYO.1)C0 could allow a remote unauthenticated attacker to execute some OS commands or to cause denial-of-service (DoS) conditions on a vulnerable device.
CVE-2023-22917 1 Zyxel 36 Atp100, Atp100 Firmware, Atp100w and 33 more 2024-02-28 N/A 7.5 HIGH
A buffer overflow vulnerability in the “sdwan_iface_ipc” binary of Zyxel ATP series firmware versions 5.10 through 5.32, USG FLEX series firmware versions 5.00 through 5.32, USG FLEX 50(W) firmware versions 5.10 through 5.32, USG20(W)-VPN firmware versions 5.10 through 5.32, and VPN series firmware versions 5.00 through 5.35, which could allow a remote unauthenticated attacker to cause a core dump with a request error message on a vulnerable device by uploading a crafted configuration file.
CVE-2023-28771 1 Zyxel 38 Atp100, Atp100 Firmware, Atp100w and 35 more 2024-02-28 N/A 9.8 CRITICAL
Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN series firmware versions 4.60 through 5.35, USG FLEX series firmware versions 4.60 through 5.35, and ATP series firmware versions 4.60 through 5.35, which could allow an unauthenticated attacker to execute some OS commands remotely by sending crafted packets to an affected device.
CVE-2023-27989 1 Zyxel 8 Lte7480-m804, Lte7480-m804 Firmware, Lte7490-m904 and 5 more 2024-02-28 N/A 6.5 MEDIUM
A buffer overflow vulnerability in the CGI program of the Zyxel NR7101 firmware versions prior to V1.00(ABUV.8)C0 could allow a remote authenticated attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.
CVE-2023-22924 1 Zyxel 2 Nbg-418n, Nbg-418n Firmware 2024-02-28 N/A 4.9 MEDIUM
A buffer overflow 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 cause denial-of-service (DoS) conditions by executing crafted CLI commands on a vulnerable device.
CVE-2023-27990 1 Zyxel 38 Atp100, Atp100 Firmware, Atp100w and 35 more 2024-02-28 N/A 4.8 MEDIUM
The cross-site scripting (XSS) vulnerability in 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 with administrator privileges to store malicious scripts in a vulnerable device. A successful XSS attack could then result in the stored malicious scripts being executed when the user visits the Logs page of the GUI on the device.
CVE-2023-33010 1 Zyxel 46 Atp100, Atp100 Firmware, Atp100w and 43 more 2024-02-28 N/A 9.8 CRITICAL
A buffer overflow vulnerability in the ID processing function in Zyxel ATP series firmware versions 4.32 through 5.36 Patch 1, USG FLEX series firmware versions 4.50 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.25 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.25 through 5.36 Patch 1, VPN series firmware versions 4.30 through 5.36 Patch 1, ZyWALL/USG series firmware versions 4.25 through 4.73 Patch 1, could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and even a remote code execution on an affected device.
CVE-2023-22913 1 Zyxel 22 Usg Flex 100, Usg Flex 100 Firmware, Usg Flex 100w and 19 more 2024-02-28 N/A 8.1 HIGH
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.
CVE-2023-22923 1 Zyxel 2 Nbg-418n, Nbg-418n Firmware 2024-02-28 N/A 6.5 MEDIUM
A format string vulnerability in a binary of the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote authenticated attacker to cause denial-of-service (DoS) conditions on an affected device.