CVE-2025-6599 — Zyxel / DX3301-T0 firmware

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Zyxel / DX3301-T0 firmware	affected <= 5.50(ABVY.6.3)C0

CWE

CWE-400

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-uncontrolled-resource-consumption-and-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-security-routers-and-wireless-extenders-11-18-2025

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.