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Zyxel

zyxel

329 CVEs • 885 products

Products (885)

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CVEs (329)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Zyxel
1Zywall10
Apr 16, 2026
Dec 31, 2004
N/A· v4
N/A· v3
4.3 MEDIUM· v2
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.
1Zyxel
2Prestige
Zynos
Apr 16, 2026
Dec 31, 2004
N/A· v4
N/A· v3
5.0 MEDIUM· v2
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...Show more
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.Show less
1Zyxel
2Prestige
Zynos
Apr 16, 2026
Sep 13, 2004
N/A· v4
N/A· v3
5.0 MEDIUM· v2
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.
1Zyxel
1Prestige
Apr 16, 2026
Aug 6, 2004
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Prestige 650HW-31 running Rompager 4.7 software allows remote attackers to cause a denial of service (device reboot) via a long password.
1Zyxel
1Prestige
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
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.
1Zyxel
1Prestige
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
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.
1Zyxel
1Zywall10
Apr 16, 2026
Jul 26, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
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.
1Zyxel
2Prestige 1600
Prestige 681
Apr 16, 2026
Dec 14, 2001
N/A· v4
N/A· v3
5.0 MEDIUM· v2
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 kilob...Show more
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.Show less
1Zyxel
1Prestige
Apr 16, 2026
Aug 14, 2001
N/A· v4
N/A· v3
7.5 HIGH· v2
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...Show more
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.Show less