PatchTheCVECVE-2017-18370: The ZyXEL P660HN-T1A v2 TCLinux Fw #7.3.37.6 router distributed by TrueOnline has a command injection vulnerab
CVE-2017-18370 is a high-severity flaw (CVSS 8.8) affecting 5200w-t firmware, p660hn-t1a v2 firmware, p660hn-t1a v1 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The ZyXEL P660HN-T1A v2 TCLinux Fw #7.3.37.6 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is only accessible by an authenticated user. The vulnerability is in the logSet.asp page and can be exploited through the ServerIP parameter. Authentication can be achieved by exploiting CVE-2017-18371.
Why this priority
- High severity
- EPSS top 2%: very likely to be exploited
- Public exploit reference
- On your watchlist
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 24.4% (top 2%) |
| CISA exploited list | No |
| Weakness | CWE-78 |
| Published | 2019-05-02 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-18370?
5200w-t firmware: mitigate or apply the listed mitigation; p660hn-t1a v2 firmware: mitigate or apply the listed mitigation; p660hn-t1a v1 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2017-18370 being exploited?
CVE-2017-18370 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-18370 affect?
CVE-2017-18370 affects 5200w-t firmware, p660hn-t1a v2 firmware, p660hn-t1a v1 firmware. Severity is high (CVSS 8.8). The ZyXEL P660HN-T1A v2 TCLinux Fw #7.3.37.6 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is only accessible by an authenticated user. The vulnerability is in the
How urgent is CVE-2017-18370?
Priority 65/100. High severity; EPSS top 2%: very likely to be exploited; Public exploit reference; On your watchlist
Software pages
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