CVE-2020-14102

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-01-13 · updated 2026-06-17
Weakness: CWE-77

Description

There is command injection when ddns processes the hostname, which causes the administrator user to obtain the root privilege of the router. This affects Xiaomi router AX1800rom version < 1.0.336 and Xiaomi route RM1800 root version < 1.0.26.

Affected products

Mi Ax1800 Firmware: before 1.0.336 — fixed in 1.0.336
Mi Rm1800 Firmware: before 1.0.26 — fixed in 1.0.26

How to fix

Upgrade to a fixed version: Mi Ax1800 Firmware 1.0.336; Mi Rm1800 Firmware 1.0.26. Check the vendor advisory for mitigations.

References

https://privacy.mi.com/trust#/security/vulnerability-management/vulnerability-announcement/detail?id=23&locale=en
https://privacy.mi.com/trust#/security/vulnerability-management/vulnerability-announcement/detail?id=23&locale=en

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