CVE-2020-14140 | BDVDB-2026-198621 Detail

Xiaomi Multiple Devices

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact none. Attack vector: network.

Weaknesses#

CWE-306 Missing Authentication for Critical Function

References#

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

Exploit#

No public exploit known

History#

Version 12023-03-29Record published in the CVE List.
Version 22025-02-18Most recent update recorded in the CVE List.

Published

Published: 2023-03-29
Last modified: 2025-02-18

Vendor information

Vendor: Not stated
Product: Xiaomi Multiple Devices

Score

7.5 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 62.8.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Authentication Issues

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
Xiaomi Multiple Devices, firmware update time in 2020-2022
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.5 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	None
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).