Filtered by vendor Zyxel
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Total
281 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2020-9054 | 1 Zyxel | 54 Atp100, Atp100 Firmware, Atp200 and 51 more | 2025-03-21 | 10.0 HIGH | 9.8 CRITICAL |
| 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 the weblogin.cgi CGI executable. This program fails to properly sanitize the username parameter that is passed to it. If the username parameter contains certain characters, it can allow command injection with the privileges of the web server that runs on the ZyXEL device. Although the web server does not run as the root user, ZyXEL devices include a setuid utility that can be leveraged to run any command with root privileges. As such, it should be assumed that exploitation of this vulnerability can lead to remote code execution with root privileges. By sending a specially-crafted HTTP POST or GET request to a vulnerable ZyXEL device, a remote, unauthenticated attacker may be able to execute arbitrary code on the device. This may happen by directly connecting to a device if it is directly exposed to an attacker. However, there are ways to trigger such crafted requests even if an attacker does not have direct connectivity to a vulnerable devices. For example, simply visiting a website can result in the compromise of any ZyXEL device that is reachable from the client system. Affected products include: NAS326 before firmware V5.21(AAZF.7)C0 NAS520 before firmware V5.21(AASZ.3)C0 NAS540 before firmware V5.21(AATB.4)C0 NAS542 before firmware V5.21(ABAG.4)C0 ZyXEL has made firmware updates available for NAS326, NAS520, NAS540, and NAS542 devices. Affected models that are end-of-support: NSA210, NSA220, NSA220+, NSA221, NSA310, NSA310S, NSA320, NSA320S, NSA325 and NSA325v2 | |||||
| CVE-2023-27992 | 1 Zyxel | 6 Nas326, Nas326 Firmware, Nas540 and 3 more | 2025-03-19 | 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-2017-6884 | 1 Zyxel | 2 Emg2926, Emg2926 Firmware | 2025-03-14 | 9.0 HIGH | 8.8 HIGH |
| A command injection vulnerability was discovered on the Zyxel EMG2926 home router with firmware V1.00(AAQT.4)b8. The vulnerability is located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute arbitrary commands on the router, such as the ping_ip parameter to the expert/maintenance/diagnostic/nslookup URI. | |||||
| CVE-2017-18368 | 2 Billion, Zyxel | 6 5200w-t, 5200w-t Firmware, P660hn-t1a V1 and 3 more | 2025-03-14 | 10.0 HIGH | 9.8 CRITICAL |
| The ZyXEL P660HN-T1A v1 TCLinux Fw $7.3.15.0 v001 / 3.40(ULM.0)b31 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is accessible by an unauthenticated user. The vulnerability is in the ViewLog.asp page and can be exploited through the remote_host parameter. | |||||
| CVE-2022-30525 | 1 Zyxel | 32 Atp100, Atp100 Firmware, Atp100w and 29 more | 2025-03-13 | 10.0 HIGH | 9.8 CRITICAL |
| A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 50(W) firmware versions 5.10 through 5.21 Patch 1, USG20(W)-VPN firmware versions 5.10 through 5.21 Patch 1, ATP series firmware versions 5.10 through 5.21 Patch 1, VPN series firmware versions 4.60 through 5.21 Patch 1, which could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device. | |||||
| CVE-2023-28771 | 1 Zyxel | 38 Atp100, Atp100 Firmware, Atp100w and 35 more | 2025-03-13 | 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-2024-40890 | 1 Zyxel | 27 Sbg3300-n000, Sbg3300-n000 Firmware, Sbg3300-nb00 and 24 more | 2025-02-12 | N/A | 8.8 HIGH |
| **UNSUPPORTED WHEN ASSIGNED** A post-authentication command injection vulnerability in the CGI program of the legacy DSL CPE Zyxel VMG4325-B10A firmware version 1.00(AAFR.4)C0_20170615 could allow an authenticated attacker to execute operating system (OS) commands on an affected device by sending a crafted HTTP POST request. | |||||
| CVE-2024-40891 | 1 Zyxel | 27 Sbg3300-n000, Sbg3300-n000 Firmware, Sbg3300-nb00 and 24 more | 2025-02-12 | N/A | 8.8 HIGH |
| **UNSUPPORTED WHEN ASSIGNED** A post-authentication command injection vulnerability in the management commands of the legacy DSL CPE Zyxel VMG4325-B10A firmware version 1.00(AAFR.4)C0_20170615 could allow an authenticated attacker to execute operating system (OS) commands on an affected device via Telnet. | |||||
| CVE-2020-29583 | 1 Zyxel | 60 Atp100, Atp100 Firmware, Atp100w and 57 more | 2025-02-04 | 10.0 HIGH | 9.8 CRITICAL |
| Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this account can be found in cleartext in the firmware. This account can be used by someone to login to the ssh server or web interface with admin privileges. | |||||
| CVE-2023-28770 | 1 Zyxel | 2 Dx5401-b0, Dx5401-b0 Firmware | 2025-01-31 | 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-2023-33010 | 1 Zyxel | 46 Atp100, Atp100 Firmware, Atp100w and 43 more | 2025-01-27 | 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 | 2025-01-27 | 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-2024-0816 | 1 Zyxel | 130 Ax7501-b0, Ax7501-b0 Firmware, Ax7501-b1 and 127 more | 2025-01-22 | N/A | 5.5 MEDIUM |
| The buffer overflow vulnerability in the DX3300-T1 firmware version V5.50(ABVY.4)C0 could allow an authenticated local attacker to cause denial of service (DoS) conditions by executing the CLI command with crafted strings on an affected device. | |||||
| CVE-2023-37929 | 1 Zyxel | 64 Ax7501-b0, Ax7501-b0 Firmware, Ax7501-b1 and 61 more | 2025-01-22 | N/A | 6.5 MEDIUM |
| The buffer overflow vulnerability in the CGI program of the VMG3625-T50B firmware version V5.50(ABPM.8)C0 could allow an authenticated remote attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device. | |||||
| CVE-2024-29976 | 1 Zyxel | 4 Nas326, Nas326 Firmware, Nas542 and 1 more | 2025-01-22 | N/A | 6.5 MEDIUM |
| ** UNSUPPORTED WHEN ASSIGNED ** The improper privilege management vulnerability in the command “show_allsessions” in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an authenticated attacker to obtain a logged-in administrator’s session information containing cookies on an affected device. | |||||
| CVE-2024-29975 | 1 Zyxel | 4 Nas326, Nas326 Firmware, Nas542 and 1 more | 2025-01-22 | N/A | 6.7 MEDIUM |
| ** UNSUPPORTED WHEN ASSIGNED ** The improper privilege management vulnerability in the SUID executable binary in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an authenticated local attacker with administrator privileges to execute some system commands as the “root” user on a vulnerable device. | |||||
| CVE-2024-29974 | 1 Zyxel | 4 Nas326, Nas326 Firmware, Nas542 and 1 more | 2025-01-22 | N/A | 9.8 CRITICAL |
| ** UNSUPPORTED WHEN ASSIGNED ** The remote code execution vulnerability in the CGI program “file_upload-cgi” in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an unauthenticated attacker to execute arbitrary code by uploading a crafted configuration file to a vulnerable device. | |||||
| CVE-2024-29973 | 1 Zyxel | 4 Nas326, Nas326 Firmware, Nas542 and 1 more | 2025-01-22 | N/A | 9.8 CRITICAL |
| ** UNSUPPORTED WHEN ASSIGNED ** The command injection vulnerability in the “setCookie” parameter in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted HTTP POST request. | |||||
| CVE-2024-29972 | 1 Zyxel | 4 Nas326, Nas326 Firmware, Nas542 and 1 more | 2025-01-22 | N/A | 9.8 CRITICAL |
| ** UNSUPPORTED WHEN ASSIGNED ** The command injection vulnerability in the CGI program "remote_help-cgi" in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted HTTP POST request. | |||||
| CVE-2024-1575 | 1 Zyxel | 40 Nwa110ax, Nwa110ax Firmware, Nwa1123acv3 and 37 more | 2025-01-22 | N/A | 6.5 MEDIUM |
| The improper privilege management vulnerability in the Zyxel WBE660S firmware version 6.70(ACGG.3) and earlier versions could allow an authenticated user to escalate privileges and download the configuration files on a vulnerable device. | |||||