Vulnerabilities (CVE)

Filtered by vendor Zyxel Subscribe
Total 330 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2005-0328 2 Netgear, Zyxel 3 Rt311, Rt314, Prestige 2026-06-16 5.0 MEDIUM N/A
Zyxel P310, P314, P324 and Netgear RT311, RT314 running the latest firmware, allows remote attackers on the WAN to obtain the IP address of the LAN side interface by pinging a valid LAN IP address, which generates an ARP reply from the WAN address side that maps the LAN IP address to the WAN's MAC address.
CVE-2004-1789 1 Zyxel 1 Zywall10 2026-06-16 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-2004-1684 1 Zyxel 2 Prestige, Zynos 2026-06-16 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-2004-1540 1 Zyxel 2 Prestige, Zynos 2026-06-16 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-2004-0670 1 Zyxel 1 Prestige 2026-06-16 5.0 MEDIUM N/A
Prestige 650HW-31 running Rompager 4.7 software allows remote attackers to cause a denial of service (device reboot) via a long password.
CVE-2002-1072 1 Zyxel 1 Prestige 2026-06-16 5.0 MEDIUM N/A
ZyXEL Prestige 642R 2.50(FA.1) and Prestige 310 V3.25(M.01), allows remote attackers to cause a denial of service via an oversized, fragmented "jolt" style ICMP packet.
CVE-2002-1071 1 Zyxel 1 Prestige 2026-06-16 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 2026-06-16 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-2001-1194 1 Zyxel 2 Prestige 1600, Prestige 681 2026-06-16 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-2001-1135 1 Zyxel 1 Prestige 2026-06-16 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.