Filtered by vendor Zyxel
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Total
303 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2006-2562 | 1 Zyxel | 1 P-335wt Router | 2025-04-03 | 7.5 HIGH | N/A |
| ZyXEL P-335WT router allows remote attackers to bypass access restrictions and conduct unauthorized operations via a UPnP request with a modified InternalClient parameter, which is not validated, as demonstrated by using AddPortMapping to forward arbitrary traffic. | |||||
| CVE-2001-1194 | 1 Zyxel | 2 Prestige 1600, Prestige 681 | 2025-04-03 | 5.0 MEDIUM | N/A |
| Zyxel Prestige 681 and 1600 SDSL Routers allow remote attackers to cause a denial of service via malformed packets with (1) an IP length less than actual packet size, or (2) fragmented packets whose size exceeds 64 kilobytes after reassembly. | |||||
| CVE-2004-1684 | 1 Zyxel | 2 Prestige, Zynos | 2025-04-03 | 5.0 MEDIUM | N/A |
| Zyxel P681 running ZyNOS Vt020225a contains portions of memory in an ARP request, which allows remote attackers to obtain sensitive information by sniffing the network. | |||||
| CVE-2004-1789 | 1 Zyxel | 1 Zywall10 | 2025-04-03 | 4.3 MEDIUM | N/A |
| Cross-site scripting (XSS) vulnerability in the web management interface in ZyWALL 10 4.07 allows remote attackers to inject arbitrary web script or HTML via the rpAuth_1 page. | |||||
| CVE-2001-1135 | 1 Zyxel | 1 Prestige | 2025-04-03 | 7.5 HIGH | N/A |
| ZyXEL Prestige 642R and 642R-I routers do not filter the routers' Telnet and FTP ports on the external WAN interface from inside access, allowing someone on an internal computer to reconfigure the router, if the password is known. | |||||
| CVE-2002-1071 | 1 Zyxel | 1 Prestige | 2025-04-03 | 5.0 MEDIUM | N/A |
| ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet, FTP, and DHCP services (crash) via a TCP packet with both the SYN and ACK flags set. | |||||
| CVE-2002-0438 | 1 Zyxel | 1 Zywall10 | 2025-04-03 | 5.0 MEDIUM | N/A |
| ZyXEL ZyWALL 10 before 3.50 allows remote attackers to cause a denial of service via an ARP packet with the firewall's IP address and an incorrect MAC address, which causes the firewall to disable the LAN interface. | |||||
| CVE-2004-1540 | 1 Zyxel | 2 Prestige, Zynos | 2025-04-03 | 5.0 MEDIUM | N/A |
| ZyXEL Prestige 623, 650, and 652 HW Routers, and possibly other versions, with HTTP Remote Administration enabled, does not require a password to access rpFWUpload.html, which allows remote attackers to reset the router configuration file. | |||||
| 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-2017-18368 | 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-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. | |||||