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CVE-2018-1164
CRITICAL
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.
Published: Feb 21, 2018
Modified: Jun 17, 2026
CWE-306
CWE-732
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (1)
| Vendor | Product | Version |
|---|---|---|
| zyxel | p-870h-51_firmware | 1.00\(awg.3\)d5 |
GitHub Security Advisory GHSA-943g-cpqh-7wmv
This vulnerability allows remote attackers to cause a denial-of-service condition on vulnerable...
References (2)
- https://zerodayinitiative.com/advisories/ZDI-18-135 Third Party Advisory, VDB Entry
- https://zerodayinitiative.com/advisories/ZDI-18-135 Third Party Advisory, VDB Entry
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
3.96%
Top 10% most likely to be exploited
Threat Score
40.4 / 100
Data Sources
NVD
EPSS
GitHub