Vulnerabilities (CVE)

Filtered by vendor Zyxel Subscribe
Total 330 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2025-13942 1 Zyxel 36 Dx4510-b0, Dx4510-b0 Firmware, Dx4510-b1 and 33 more 2026-06-17 N/A 9.8 CRITICAL
A command injection vulnerability in the UPnP function of the Zyxel EX3510-B0 firmware versions through 5.17(ABUP.15.1)C0 could allow a remote attacker to execute operating system (OS) commands on an affected device by sending specially crafted UPnP SOAP requests.
CVE-2025-11848 1 Zyxel 96 Ax7501-b1, Ax7501-b1 Firmware, Dx3300-t0 and 93 more 2026-06-17 N/A 4.9 MEDIUM
A null pointer dereference vulnerability in the Wake-on-LAN CGI program of the Zyxel VMG3625-T50B firmware version through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request.
CVE-2025-11847 1 Zyxel 108 Ax7501-b1, Ax7501-b1 Firmware, Dx3300-t0 and 105 more 2026-06-17 N/A 4.9 MEDIUM
A null pointer dereference vulnerability in the IP settings CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request.
CVE-2025-11846 1 Zyxel 108 Ax7501-b1, Ax7501-b1 Firmware, Dx3300-t0 and 105 more 2026-06-17 N/A 4.9 MEDIUM
A null pointer dereference vulnerability in the account settings CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request.
CVE-2025-11845 1 Zyxel 108 Ax7501-b1, Ax7501-b1 Firmware, Dx3300-t0 and 105 more 2026-06-17 N/A 4.9 MEDIUM
A null pointer dereference vulnerability in the certificate downloader CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request.
CVE-2025-0890 1 Zyxel 28 Sbg3300-n000, Sbg3300-n000 Firmware, Sbg3300-nb00 and 25 more 2026-06-17 N/A 9.8 CRITICAL
**UNSUPPORTED WHEN ASSIGNED** Insecure default credentials for the Telnet function in the legacy DSL CPE Zyxel VMG4325-B10A firmware version 1.00(AAFR.4)C0_20170615 could allow an attacker to log in to the management interface if the administrators have the option to change the default credentials but fail to do so.
CVE-2024-9677 1 Zyxel 6 Uos, Usg Flex 100h, Usg Flex 200h and 3 more 2026-06-17 N/A 5.5 MEDIUM
The insufficiently protected credentials vulnerability in the CLI command of the USG FLEX H series uOS firmware version V1.21 and earlier versions could allow an authenticated local attacker to gain privilege escalation by stealing the authentication token of a login administrator. Note that this attack could be successful only if the administrator has not logged out.
CVE-2024-9200 1 Zyxel 12 Emg6726-b10a, Emg6726-b10a Firmware, Vmg3927-b50b and 9 more 2026-06-17 N/A 7.2 HIGH
A post-authentication command injection vulnerability in the "host" parameter of the diagnostic function in Zyxel VMG4005-B50A firmware versions through V5.15(ABQA.2.2)C0 could allow an authenticated attacker with administrator privileges to execute operating system (OS) commands on a vulnerable device.
CVE-2024-9197 1 Zyxel 72 Ax7501-b0, Ax7501-b0 Firmware, Ax7501-b1 and 69 more 2026-06-17 N/A 4.9 MEDIUM
A post-authentication buffer overflow vulnerability in the parameter "action" of the CGI program in Zyxel VMG3625-T50B firmware versions through V5.50(ABPM.9.2)C0 could allow an authenticated attacker with administrator privileges to cause a temporary denial of service (DoS) condition against the web management interface by sending a crafted HTTP GET request to a vulnerable device if the function ZyEE is enabled.
CVE-2024-8882 1 Zyxel 20 Gs1900-10hp, Gs1900-10hp Firmware, Gs1900-16 and 17 more 2026-06-17 N/A 4.5 MEDIUM
A buffer overflow vulnerability in the CGI program in the Zyxel GS1900-48 switch firmware version V2.80(AAHN.1)C0 and earlier could allow an authenticated, LAN-based attacker with administrator privileges to cause denial of service (DoS) conditions via a crafted URL.
CVE-2024-8881 1 Zyxel 20 Gs1900-10hp, Gs1900-10hp Firmware, Gs1900-16 and 17 more 2026-06-17 N/A 6.8 MEDIUM
A post-authentication command injection vulnerability in the CGI program in the Zyxel GS1900-48 switch firmware version V2.80(AAHN.1)C0 and earlier could allow an authenticated, LAN-based attacker with administrator privileges to execute some operating system (OS) commands on an affected device by sending a crafted HTTP request.
CVE-2024-8748 1 Zyxel 126 Ax7501-b0, Ax7501-b0 Firmware, Ax7501-b1 and 123 more 2026-06-17 N/A 7.5 HIGH
A buffer overflow vulnerability in the packet parser of the third-party library "libclinkc" in Zyxel VMG8825-T50K firmware versions through V5.50(ABOM.8.4)C0 could allow an attacker to cause a temporary denial of service (DoS) condition against the web management interface by sending a crafted HTTP POST request to a vulnerable device.
CVE-2024-8234 1 Zyxel 2 Nwaw1100-n, Nwaw1100-n Firmware 2026-06-17 N/A 7.5 HIGH
** UNSUPPORTED WHEN ASSIGNED ** A command injection vulnerability in the functions formSysCmd(), formUpgradeCert(), and formDelcert() in the Zyxel NWA1100-N firmware version 1.00(AACE.1)C0 could allow an unauthenticated attacker to execute some OS commands to access system files on an affected device.
CVE-2024-7261 1 Zyxel 58 Nwa110ax, Nwa110ax Firmware, Nwa1123-ac Pro and 55 more 2026-06-17 N/A 9.8 CRITICAL
The improper neutralization of special elements in the parameter "host" in the CGI program of Zyxel NWA1123ACv3 firmware version 6.70(ABVT.4) and earlier, WAC500 firmware version 6.70(ABVS.4) and earlier, WAX655E firmware version 7.00(ACDO.1) and earlier, WBE530 firmware version 7.00(ACLE.1) and earlier, and USG LITE 60AX firmware version V2.00(ACIP.2) could allow an unauthenticated attacker to execute OS commands by sending a crafted cookie to a vulnerable device.
CVE-2024-7203 1 Zyxel 15 Atp100, Atp100w, Atp200 and 12 more 2026-06-17 N/A 7.2 HIGH
A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.60 through V5.38 and USG FLEX series firmware versions from V4.60 through V5.38 could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device by executing a crafted CLI command.
CVE-2024-6343 1 Zyxel 16 Atp100, Atp100w, Atp200 and 13 more 2026-06-17 N/A 4.9 MEDIUM
A buffer overflow vulnerability in the CGI program of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50(W) series firmware versions from V4.16 through V5.38, and USG20(W)-VPN series firmware versions from V4.16 through V5.38 could allow an authenticated attacker with administrator privileges to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.
CVE-2024-6342 1 Zyxel 4 Nas326, Nas326 Firmware, Nas542 and 1 more 2026-06-17 N/A 9.8 CRITICAL
**UNSUPPORTED WHEN ASSIGNED** A command injection vulnerability in the export-cgi program of Zyxel NAS326 firmware versions through V5.21(AAZF.18)C0 and NAS542 firmware versions through V5.21(ABAG.15)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted HTTP POST request.
CVE-2024-5412 1 Zyxel 100 Ax7501-b0, Ax7501-b0 Firmware, Ax7501-b1 and 97 more 2026-06-17 N/A 7.5 HIGH
A buffer overflow vulnerability in the library "libclinkc" of the Zyxel VMG8825-T50K firmware version 5.50(ABOM.8)C0 could allow an unauthenticated attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.
CVE-2024-42061 1 Zyxel 16 Atp100, Atp100w, Atp200 and 13 more 2026-06-17 N/A 6.1 MEDIUM
A reflected cross-site scripting (XSS) vulnerability in the CGI program "dynamic_script.cgi" of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50(W) series firmware versions from V4.16 through V5.38, and USG20(W)-VPN series firmware versions from V4.16 through V5.38 could allow an attacker to trick a user into visiting a crafted URL with the XSS payload. The attacker could obtain browser-based information if the malicious script is executed on the victim’s browser.
CVE-2024-42060 1 Zyxel 16 Atp100, Atp100w, Atp200 and 13 more 2026-06-17 N/A 7.2 HIGH
A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50(W) series firmware versions from V4.16 through V5.38, and USG20(W)-VPN series firmware versions from V4.16 through V5.38 could allow an authenticated attacker with administrator privileges to execute some OS commands on an affected device by uploading a crafted internal user agreement file to the vulnerable device.