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Description

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.

PUBLISHED Reserved 2025-06-25 | Published 2025-11-18 | Updated 2025-11-18 | Assigner Zyxel




MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Problem types

CWE-400 Uncontrolled Resource Consumption

Product status

Default status
unaffected

<= 5.50(ABVY.6.3)C0
affected

References

www.zyxel.com/...y-routers-and-wireless-extenders-11-18-2025 vendor-advisory

cve.org (CVE-2025-6599)

nvd.nist.gov (CVE-2025-6599)

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