CVE-2020-6882

7.5 HIGH 1% exploit odds Fix listed

What it is

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>

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure.
Exploit odds: 1.2% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2020-12-21 18:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:23 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.2% in the next 30 days (EPSS).
Severity: 7.5 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2020-12-21 18:15 UTC
Last modified: 2026-06-17 03:23 UTC
Exploit probability: 1.2% · EPSS, next 30 days
Weakness: CWE-798 · Hard-coded credentials
Record status: Modified

Affected

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

Attack profile CVSS 3.1 · 7.5

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Raw vector

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

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Fix and advisories

References

NVD record · CVE.org record