Filtered by vendor Zyxel
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Total
327 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2023-34139 | 1 Zyxel | 30 Usg 2200-vpn, Usg 2200-vpn Firmware, Usg Flex 100 and 27 more | 2026-06-17 | N/A | 8.8 HIGH |
| 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. | |||||
| CVE-2023-34138 | 1 Zyxel | 44 Usg 20w-vpn, Usg 20w-vpn Firmware, Usg 2200-vpn and 41 more | 2026-06-17 | N/A | 8.0 HIGH |
| A command injection vulnerability in the hotspot management feature of the Zyxel ATP series firmware versions 4.60 through 5.36 Patch 2, USG FLEX series firmware versions 4.60 through 5.36 Patch 2, USG FLEX 50(W) series firmware versions 4.60 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 4.60 through 5.36 Patch 2, and VPN series firmware versions 4.60 through 5.36 Patch 2, could allow an unauthenticated, LAN-based attacker to execute some OS commands on an affected device if the attacker could trick an authorized administrator to add their IP address to the list of trusted RADIUS clients in advance. | |||||
| CVE-2023-33013 | 1 Zyxel | 2 Nbg6604, Nbg6604 Firmware | 2026-06-17 | N/A | 8.8 HIGH |
| A post-authentication command injection vulnerability in the NTP feature of Zyxel NBG6604 firmware version V1.01(ABIR.1)C0 could allow an authenticated attacker to execute some OS commands remotely by sending a crafted HTTP request. | |||||
| CVE-2023-33012 | 1 Zyxel | 44 Usg 20w-vpn, Usg 20w-vpn Firmware, Usg 2200-vpn and 41 more | 2026-06-17 | N/A | 8.8 HIGH |
| 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 50(W) series firmware versions 5.10 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 5.10 through 5.36 Patch 2, and VPN series firmware versions 5.00 through 5.36 Patch 2, could allow an unauthenticated, LAN-based attacker to execute some OS commands by using a crafted GRE configuration when the cloud management mode is enabled. | |||||
| CVE-2023-33011 | 1 Zyxel | 44 Usg 20w-vpn, Usg 20w-vpn Firmware, Usg 2200-vpn and 41 more | 2026-06-17 | N/A | 8.8 HIGH |
| 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 50(W) series firmware versions 5.10 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 5.10 through 5.36 Patch 2, and VPN series firmware versions 5.00 through 5.36 Patch 2, could allow an unauthenticated, LAN-based attacker to execute some OS commands by using a crafted PPPoE configuration on an affected device when the cloud management mode is enabled. | |||||
| CVE-2023-33010 | 1 Zyxel | 46 Atp100, Atp100 Firmware, Atp100w and 43 more | 2026-06-17 | 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-2023-33009 | 1 Zyxel | 46 Atp100, Atp100 Firmware, Atp100w and 43 more | 2026-06-17 | N/A | 9.8 CRITICAL |
| A buffer overflow vulnerability in the notification function in Zyxel ATP series firmware versions 4.60 through 5.36 Patch 1, USG FLEX series firmware versions 4.60 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.60 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.60 through 5.36 Patch 1, VPN series firmware versions 4.60 through 5.36 Patch 1, ZyWALL/USG series firmware versions 4.60 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-2023-28771 | 1 Zyxel | 38 Atp100, Atp100 Firmware, Atp100w and 35 more | 2026-06-17 | 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-2023-28770 | 1 Zyxel | 2 Dx5401-b0, Dx5401-b0 Firmware | 2026-06-17 | 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-2023-28769 | 1 Zyxel | 2 Dx5401-b0, Dx5401-b0 Firmware | 2026-06-17 | 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-2023-28768 | 1 Zyxel | 22 Xgs2220-30, Xgs2220-30 Firmware, Xgs2220-30f and 19 more | 2026-06-17 | N/A | 6.5 MEDIUM |
| Improper frame handling in the Zyxel XGS2220-30 firmware version V4.80(ABXN.1), XMG1930-30 firmware version V4.80(ACAR.1), and XS1930-10 firmware version V4.80(ABQE.1) could allow an unauthenticated LAN-based attacker to cause denial-of-service (DoS) conditions by sending crafted frames to an affected switch. | |||||
| CVE-2023-28767 | 1 Zyxel | 44 Usg 20w-vpn, Usg 20w-vpn Firmware, Usg 2200-vpn and 41 more | 2026-06-17 | N/A | 8.8 HIGH |
| The configuration parser fails to sanitize user-controlled input in the Zyxel ATP series firmware versions 5.10 through 5.36, USG FLEX series firmware versions 5.00 through 5.36, USG FLEX 50(W) series firmware versions 5.10 through 5.36, USG20(W)-VPN series firmware versions 5.10 through 5.36, and VPN series firmware versions 5.00 through 5.36. An unauthenticated, LAN-based attacker could leverage the vulnerability to inject some operating system (OS) commands into the device configuration data on an affected device when the cloud management mode is enabled. | |||||
| CVE-2023-27992 | 1 Zyxel | 6 Nas326, Nas326 Firmware, Nas540 and 3 more | 2026-06-17 | 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 | 2026-06-17 | 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-2023-27990 | 1 Zyxel | 38 Atp100, Atp100 Firmware, Atp100w and 35 more | 2026-06-17 | 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-2023-27989 | 1 Zyxel | 8 Lte7480-m804, Lte7480-m804 Firmware, Lte7490-m904 and 5 more | 2026-06-17 | 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-2023-27988 | 1 Zyxel | 6 Nas326, Nas326 Firmware, Nas540 and 3 more | 2026-06-17 | 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-2023-22924 | 1 Zyxel | 2 Nbg-418n, Nbg-418n Firmware | 2026-06-17 | 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-2023-22923 | 1 Zyxel | 2 Nbg-418n, Nbg-418n Firmware | 2026-06-17 | 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. | |||||
| CVE-2023-22922 | 1 Zyxel | 2 Nbg-418n, Nbg-418n Firmware | 2026-06-17 | N/A | 7.5 HIGH |
| 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. | |||||