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

criticalknown exploitedpublic exploitCVE-2017-18368
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Zyxelproduct: P660HN-T1A RoutersCode injection
What
Zyxel P660HN-T1A routers contain a command injection vulnerability in the Remote System Log forwarding function.
Who is affected
Users of Zyxel P660HN-T1A routers are affected.
Urgency
Remediation is critical due to active exploitation and the severity of the vulnerability.
Action
Update the firmware of Zyxel P660HN-T1A routers.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2023-08-07
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2017-18368

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2017-18368coverage & exploitation statusNVD · CVE.org

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