CVE-2020-14140

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-03-29 · updated 2026-06-17
Weakness: CWE-306

Description

When Xiaomi router firmware is updated in 2020, there is an unauthenticated API that can reveal WIFI password vulnerability. This vulnerability is caused by the lack of access control policies on some API interfaces. Attackers can exploit this vulnerability to enter the background and execute background command injection.

Affected products

Xiaomi Multiple Devices: from 2020 before 2023.2 — fixed in 2023.2

How to fix

Upgrade to a fixed version: Xiaomi Multiple Devices 2023.2. Check the vendor advisory for mitigations.

References

https://trust.mi.com/zh-CN/misrc/bulletins/advisory?cveId=506
https://trust.mi.com/zh-CN/misrc/bulletins/advisory?cveId=506

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