Zyxel Ee5301-00 Firmware vulnerabilities

CVE-2026-1460 High · 7.2 CWE-78 Apr 28, 2026

OS Command Injection in Zyxel Nebula Fwa70 Firmware

A post-authentication command injection vulnerability in the “DomainName” parameter of the DHCP configuration file in Zyxel DX3301-T0 and EX3301-T0 firmware versions through 5.50(ABVY.7.1)C0 could allow an authenticated attacker with administrator privileges to execute OS commands on an affected device.

CVE-2026-0711 Medium · 6.8 CWE-78 Apr 28, 2026

OS Command Injection in Zyxel Nr5307 Firmware

A post-authentication command injection vulnerability in the EasyMesh-related APIs of Zyxel DX3300-T0 firmware versions through 5.50(ABVY.7.1)C0 could allow an authenticated, adjacent attacker with administrator privileges to execute OS commands on an affected device.

CVE-2025-13943 High · 8.8 CWE-78 Feb 24, 2026

OS Command Injection in Zyxel Ex5601-t1 Firmware

A post-authentication command injection vulnerability in the log file download function of the Zyxel EX3301-T0 firmware versions through 5.50(ABVY.7)C0 could allow an authenticated attacker to execute operating system (OS) commands on an affected device.

CVE-2025-11848 Medium · 4.9 CWE-476 Feb 24, 2026

NULL Pointer Dereference in Zyxel Ex5601-t1 Firmware

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 Medium · 4.9 CWE-476 Feb 24, 2026

NULL Pointer Dereference in Zyxel Ex3510-b1 Firmware

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 Medium · 4.9 CWE-476 Feb 23, 2026

NULL Pointer Dereference in Zyxel Lte3301-plus Firmware

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 Medium · 4.9 CWE-476 Feb 23, 2026

NULL Pointer Dereference in Zyxel Lte3301-plus Firmware

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-2025-8693 High · 8.8 CWE-78 Nov 17, 2025

A post-authentication command injection vulnerability in the "priv" parameter of Zyxel DX3300-T0...

A post-authentication command injection vulnerability in the "priv" parameter of Zyxel DX3300-T0 firmware version 5.50(ABVY.6.3)C0 and earlier could allow an authenticated attacker to execute operating system (OS) commands on an affected device.

CVE-2025-6599 High · 7.5 CWE-400 Nov 17, 2025

An uncontrolled resource consumption vulnerability in the web server of Zyxel DX3301-T0 firmware...

An uncontrolled resource consumption vulnerability in the web server of Zyxel DX3301-T0 firmware version 5.50(ABVY.6.3)C0 and earlier could allow an attacker to perform Slowloris‑style denial‑of‑service (DoS) attacks. Such attacks may temporarily block legitimate HTTP requests and partially disrupt access to the web management interface, while other networking services remain unaffected.