ACTIVELY EXPLOITED

CVE-2017-18368: Zyxel P660HN-T1A Routers Command Injection Vulnerability

Facts
VendorZyxel
ProductP660HN-T1A Routers
Actively exploitedYes
Added to CISA KEV7 Aug 2023
CISA federal deadline28 Aug 2023
Weakness (CWE)CWE-78

Required action (CISA's text)

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

Description (NVD)

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.

SOURCES

Other Zyxel flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.