Vulnerabilities (CVE)

Filtered by vendor Zyxel Subscribe
Total 303 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2014-0354 1 Zyxel 2 N300 Netusb Nbg-419n, N300 Netusb Nbg-419n Firmware 2025-04-12 7.8 HIGH N/A
The ZyXEL Wireless N300 NetUSB NBG-419N router with firmware 1.00(BFQ.6)C0 has a hardcoded password of qweasdzxc for an unspecified account, which allows remote attackers to obtain index.asp login access via an HTTP request.
CVE-2015-5989 1 Zyxel 1 Gs1900-10hp Firmware 2025-04-12 10.0 HIGH 9.8 CRITICAL
Belkin F9K1102 2 devices with firmware 2.10.17 rely on client-side JavaScript code for authorization, which allows remote attackers to obtain administrative privileges via certain changes to LockStatus and Login_Success values.
CVE-2016-1350 6 Cisco, Lenovo, Samsung and 3 more 6 Ios Xe, Thinkcentre E75s Firmware, X14j Firmware and 3 more 2025-04-12 7.8 HIGH 7.5 HIGH
Cisco IOS 15.3 and 15.4, Cisco IOS XE 3.8 through 3.11, and Cisco Unified Communications Manager allow remote attackers to cause a denial of service (device reload) via malformed SIP messages, aka Bug ID CSCuj23293.
CVE-2011-0746 1 Zyxel 1 O2 Dsl Router Classic 2025-04-11 4.3 MEDIUM N/A
Cross-site request forgery (CSRF) vulnerability in Forms/PortForwarding_Edit_1 on the ZyXEL O2 DSL Router Classic allows remote attackers to hijack the authentication of administrators for requests that insert cross-site scripting (XSS) sequences via the PortRule_Name parameter.
CVE-2013-6786 6 Allegrosoft, Dlink, Huawei and 3 more 7 Rompager, Dsl-2640r, Dsl-2641r and 4 more 2025-04-11 4.3 MEDIUM N/A
Cross-site scripting (XSS) vulnerability in Allegro RomPager before 4.51, as used on the ZyXEL P660HW-D1, Huawei MT882, Sitecom WL-174, TP-LINK TD-8816, and D-Link DSL-2640R and DSL-2641R, when the "forbidden author header" protection mechanism is bypassed, allows remote attackers to inject arbitrary web script or HTML by requesting a nonexistent URI in conjunction with a crafted HTTP Referer header that is not properly handled in a 404 page. NOTE: there is no CVE for a "URL redirection" issue that some sources list separately.
CVE-2011-4504 2 Genmei Mori, Zyxel 2 Pseudoics, P-330w Router 2025-04-11 7.5 HIGH N/A
The UPnP IGD implementation in the Pseudo ICS UPnP software on the ZyXEL P-330W allows remote attackers to establish arbitrary port mappings by sending a UPnP AddPortMapping action in a SOAP request to the WAN interface, related to an "external forwarding" vulnerability.
CVE-2008-1527 1 Zyxel 3 Prestige 660, Prestige 661, Zynos 2025-04-09 7.5 HIGH N/A
ZyXEL Prestige routers, including P-660, P-661, and P-662 models with firmware 3.40(PE9) and 3.40(AGD.2) through 3.40(AHQ.3), support authentication over HTTP via a hash string in the hiddenPassword field, which allows remote attackers to obtain access via a replay attack.
CVE-2008-1525 1 Zyxel 3 Prestige 660, Prestige 661, Zynos 2025-04-09 5.0 MEDIUM N/A
The default SNMP configuration on ZyXEL Prestige routers, including P-660 and P-661 models with firmware 3.40(AGD.2) through 3.40(AHQ.3), has a Trusted Host value of 0.0.0.0, which allows remote attackers to send SNMP requests from any source IP address.
CVE-2008-1528 1 Zyxel 3 Prestige 660, Prestige 661, Zynos 2025-04-09 4.0 MEDIUM N/A
ZyXEL Prestige routers, including P-660, P-661, and P-662 models with firmware 3.40(AGD.2) through 3.40(AHQ.3), allow remote authenticated users to obtain authentication data by making direct HTTP requests and then reading the HTML source, as demonstrated by a request for (1) RemMagSNMP.html, which discloses SNMP communities; or (2) WLAN.html, which discloses WEP keys.
CVE-2007-4316 1 Zyxel 2 Zynos, Zywall 2 2025-04-09 4.3 MEDIUM N/A
The management interface in ZyNOS firmware 3.62(WK.6) on the Zyxel Zywall 2 device has a certain default password, which allows remote attackers to perform administrative actions.
CVE-2008-1523 1 Zyxel 3 Prestige 660, Prestige 661, Zynos 2025-04-09 5.0 MEDIUM N/A
ZyXEL Prestige routers, including P-660, P-661, and P-662 models with firmware 3.40(AGD.2) through 3.40(AHQ.3), allow remote authenticated users to obtain ISP and Dynamic DNS credentials by sending a direct request for (1) WAN.html, (2) wzPPPOE.html, and (3) rpDyDNS.html, and then reading the HTML source.
CVE-2007-6730 1 Zyxel 1 P-330w Router 2025-04-09 9.3 HIGH N/A
Multiple cross-site request forgery (CSRF) vulnerabilities in the web management interface in the ZyXEL P-330W router allow remote attackers to hijack the authentication of administrators for requests that (1) enable remote router management via goform/formRmtMgt or (2) modify the administrator password via goform/formPasswordSetup.
CVE-2008-1521 1 Zyxel 3 Prestige 660, Prestige 661, Zynos 2025-04-09 6.5 MEDIUM N/A
ZyXEL Prestige routers, including P-660 and P-661 models with firmware 3.40(AGD.2) through 3.40(AHQ.3), allow remote authenticated users to gain privileges by accessing administrative URIs, as demonstrated by rpSysAdmin.html.
CVE-2008-1160 1 Zyxel 2 Zywall 1050, Zywall 1050 Firmware 2025-04-09 7.5 HIGH 9.8 CRITICAL
ZyXEL ZyWALL 1050 has a hard-coded password for the Quagga and Zebra processes that is not changed when it is set by a user, which allows remote attackers to gain privileges.
CVE-2007-6729 1 Zyxel 1 P-330w Router 2025-04-09 4.3 MEDIUM N/A
Cross-site scripting (XSS) vulnerability in the web management interface in the ZyXEL P-330W router allows remote attackers to inject arbitrary web script or HTML via the pingstr parameter and other unspecified vectors.
CVE-2008-1529 1 Zyxel 3 Prestige 660, Prestige 661, Zynos 2025-04-09 5.0 MEDIUM N/A
ZyXEL Prestige routers have a minimum password length for the admin account that is too small, which makes it easier for remote attackers to guess passwords via brute force methods.
CVE-2008-2167 1 Zyxel 1 Zywall 100 2025-04-09 4.3 MEDIUM N/A
Cross-site scripting (XSS) vulnerability in ZyXEL ZyWALL 100 allows remote attackers to inject arbitrary web script or HTML via the Referer header, which is not properly handled in a 404 Error page.
CVE-2008-1255 1 Zyxel 1 P-660hw 2025-04-09 10.0 HIGH N/A
The ZyXEL P-660HW series router maintains authentication state by IP address, which allows remote attackers to bypass authentication by establishing a session from a source IP address of a previously authenticated user.
CVE-2008-1257 1 Zyxel 4 P-660hw, P-660hw D1, P-660hw D3 and 1 more 2025-04-09 4.3 MEDIUM N/A
Cross-site scripting (XSS) vulnerability in Forms/DiagGeneral_2 on the ZyXEL P-660HW series router allows remote attackers to inject arbitrary web script or HTML via the PingIPAddr parameter.
CVE-2008-1259 1 Zyxel 1 P-2602hw-d1a 2025-04-09 9.3 HIGH N/A
The Zyxel P-2602HW-D1A router with 3.40(AJZ.1) firmware maintains authentication state by IP address, which allows remote attackers to bypass authentication by establishing a session from a source IP address of a user who previously authenticated within the previous 5 minutes.