CVE-2020-6882

Name: CVE-2020-6882
Creator: NVD / NIST
Published: 2020-12-21T18:15:16.79+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.22%

Last modified Jun 17, 2026

CVE-2020-6882 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 1.22% chance of exploitation in the next 30 days.

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>

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.22%

64.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-798

Affected Software

Vendor	Product	Versions
Zte	Zxhn E8810 Firmware	1.0.26
Zte	Zxhn E8810 Firmware	2.0.1
Zte	Zxhn E8820 Firmware	1.1.3
Zte	Zxhn E8820 Firmware	2.0.13
Zte	Zxhn E8822 Firmware	2.0.13

References

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

Timeline

Published: Dec 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-6882?

How severe is CVE-2020-6882?

CVE-2020-6882 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.22% probability of exploitation in the next 30 days.

How do I fix CVE-2020-6882?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-6882?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST