Zyxel P660HN-T1A Routers Command Injection Vulnerability

Added to KEV
2023-08-07
Federal due date
2023-08-28
Vendor
Zyxel
Product
P660HN-T1A Routers
EPSS
99.9th percentile (score 0.937, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2017-18368

CISA short description

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.

Required action

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

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.