CVE-2020-6881
High
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:<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>
SeverityHigh
CVSS7.5
Exploit probability—
ProductZte Zxhn E8810 Firmware
PublishedDec 21, 2020
First seenDec 21, 2020
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| 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 | — |
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