CISA-confirmed known exploited vulnerability

CVE-2017-18368

Zyxel P660HN-T1A Routers Command Injection Vulnerability

Zyxel · P660HN-T1A Routers

Vulnerability details

Zyxel P660HN-T1A routers contain a command injection vulnerability in the Remote System Log forwarding function, which is accessible by an unauthenticated user and exploited via the remote_host parameter of the ViewLog.asp page.

Added to CISA KEV: 2023-08-07

Ransomware campaign use: Unknown

CISA due date: 2023-08-28

Defensive guidance from CISA

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.

Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC

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