Zyxel VMG4005-b50b Firmware vulnerabilities

7 CVEs affecting Zyxel VMG4005-b50b Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-3871, published 2026-06-02.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2024-9200, published 2024-12-03. High severity, CVSS 7.2. EPSS: 1.2% chance of exploitation in the next 30 days. 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…
CVE-2025-8693, published 2025-11-18. High severity, CVSS 8.8. EPSS: 1.1% chance of exploitation in the next 30 days. 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…
CVE-2025-7673, published 2025-07-16. Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days. A buffer overflow vulnerability in the URL parser of the zhttpd web server in Zyxel VMG8825-T50K firmware versions prior to V5.50(ABOM.5)C0 could allow an unauthenticated attacker to cause…
CVE-2024-8748, published 2024-12-03. High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days. 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…
CVE-2025-6599, published 2025-11-18. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. 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…
CVE-2026-3871, published 2026-06-02. Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days. A buffer overflow vulnerability in the UPnP DeletePortMapping() command in Zyxel VMG4005-B50B firmware versions through 5.13(ABRL.5.4)C0 could allow an adjacent attacker to trigger a temporary…
CVE-2026-3870, published 2026-06-02. Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days. A buffer overflow vulnerability in the UPnP AddPortMapping() command in Zyxel VMG4005-B50B firmware versions through 5.13(ABRL.5.4)C0 could allow an adjacent attacker to trigger a temporary…