CVE-2017-17901

HIGH

ZyXEL P-660HW v3 - Denial of Service via TTL Expiry Packet Flood

Title source: llm

ZyXEL P-660HW v3 devices allow remote attackers to cause a denial of service (CPU consumption) via a flood of IP packets with a TTL of 1.

Core 2

Core References

Various Sources x_refsource_confirm

Exploit, Issue Tracking, Third Party Advisory, VDB Entry x_refsource_misc

CVSS v3 7.5

EPSS 0.0050

EPSS Percentile 66.1%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-400

Status published

Products (1)

zyxel/p-660hw_firmware

Published Dec 29, 2017

Tracked Since Feb 18, 2026