CVE-2018-1164
9.8
CRITICAL · CVSS 3.0 · EPSS 4% (pctl 90)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
This vulnerability allows remote attackers to cause a denial-of-service condition on vulnerable installations of ZyXEL P-870H-51 DSL Router 1.00(AWG.3)D5. Authentication is not required to exploit this vulnerability. The specific flaw exists within numerous exposed CGI endpoints. The vulnerability is caused by improper access controls that allow access to critical functions without authentication. An attacker can use this vulnerability to reboot affected devices, along with other actions. Was ZDI-CAN-4540.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.96% — more likely to be exploited than 90% of all CVEs |
| Weakness | CWE-306 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2018-02-21 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| zyxel | p-870h-51 |
| zyxel | p-870h-51 firmware |
References
→ the Explorer · watch your stack · NVD