CVE-2020-6882

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-12-21 · updated 2026-06-17
Weakness: CWE-798

Description

ZTE E8810/E8820/E8822 series routers have an information leak vulnerability, which is caused by hard-coded MQTT service access credentials on the device. The remote attacker could use this credential to connect to the MQTT server, so as to obtain information about other devices by sending specific topics. This affects:<ZXHN E8810, ZXHN E8820, ZXHN E8822><E8810 V1.0.26, E8810 V2.0.1, E8820 V1.1.3L, E8820 V2.0.13, E8822 V2.0.13>

Affected products

ZTE Zxhn E8810 Firmware: 1.0.26, 2.0.1
ZTE Zxhn E8820 Firmware: 1.1.3, 2.0.13
ZTE Zxhn E8822 Firmware: 2.0.13

References

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

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