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.
Conclusion & alert: CVE-2017-18370 is rated High Exploit Risk (86.3/100): CVSS High severity, with high exploitation likelihood (EPSS 76.64%, 99th percentile). Core evidence: 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.51% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-20 | 75.14% | 76.64% | +1.51% |
| 2 | 2026-04-02 | 75.62% | 75.14% | -0.49% |
| 3 | 2026-02-15 | — | 75.62% | — |
Full EPSS history (24 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.0 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 9.0 | 2.0 | HIGH |
|
8.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| billion | 5200w-t_firmware | 7.3.8.0 | cpe:2.3:o:billion:5200w-t_firmware:7.3.8.0:*:*:*:*:*:*:* |
| zyxel | p660hn-t1a_v2_firmware | 7.3.37.6 | cpe:2.3:o:zyxel:p660hn-t1a_v2_firmware:7.3.37.6:*:*:*:*:*:*:* |
| zyxel | p660hn-t1a_v1_firmware | 7.3.37.6 | cpe:2.3:o:zyxel:p660hn-t1a_v1_firmware:7.3.37.6:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.zyxel.com/support/announcement_unauthenticated.shtml | Broken Link |
| https://raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.txt | Exploit Third Party Advisory |
| https://seclists.org/fulldisclosure/2017/Jan/40 | Exploit Mailing List Third Party Advisory |
| https://ssd-disclosure.com/index.php/archives/2910 | Exploit Technical Description Third Party Advisory |
| https://unit42.paloaltonetworks.com/new-mirai-variant-targets-enterprise-wireless-presentation-display-systems/ | Technical Description Third Party Advisory |