What is CVE-2025-8693?

CVE-2025-8693 is a high-severity vulnerability in Zyxel Dx3300-t0 Firmware, classified under OS Command Injection. CVSS score: 8.8/10. Published 2025-11-18.

How severe is CVE-2025-8693?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Zyxel Dx3300-t0 Firmware

CVE-2025-8693

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 d…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.001 (32.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Zyxel Dx3300-t0 Firmware — versions <= 5.50(ABVY.6.3)C0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for… (vendor-advisory)

Frequently asked questions

What is CVE-2025-8693?: CVE-2025-8693 is a high-severity vulnerability in Zyxel Dx3300-t0 Firmware, classified under OS Command Injection. CVSS score: 8.8/10. Published 2025-11-18.
How severe is CVE-2025-8693?: High severity. CVSS v3 base score is 8.8 out of 10.