CVE-2020-6881 Information

Description

ZTE E8810/E8820/E8822 series routers have an MQTT DoS vulnerability which is caused by the failure of the device to verify the validity of abnormal messages. A remote attacker could connect to the MQTT server and send an MQTT exception message to the specified device which will cause the device to deny service. This affects:

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014202

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5