What’s Vulnerable › Vulnerabilities

CVE-2019-11061: HG100 has a broken access control vulnerability in its Web API Server

• Severity: high (CVSS 8.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-08-29 · updated 2026-06-17
• Weakness: CWE-306

Description

A broken access control vulnerability in HG100 firmware versions up to 4.00.06 allows an attacker in the same local area network to control IoT devices that connect with itself via http://[target]/smarthome/devicecontrol without any authentication. CVSS 3.0 base score 10 (Confidentiality, Integrity and Availability impacts). CVSS vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

Affected products

• ASUS HG100 firmware: before 4.00.09 — fixed in 4.00.09

How to fix

Upgrade to a fixed version: ASUS HG100 firmware 4.00.09. Check the vendor advisory for mitigations.

References

• http://surl.twcert.org.tw/5df6x
• https://github.com/tim124058/ASUS-SmartHome-Exploit/
• https://tvn.twcert.org.tw/taiwanvn/TVN-201906003
• http://surl.twcert.org.tw/5df6x
• https://github.com/tim124058/ASUS-SmartHome-Exploit/
• https://tvn.twcert.org.tw/taiwanvn/TVN-201906003

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