CVE-2023-26317: Xiaomi router external request interface has command injection

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-08-02 · updated 2026-06-17
Weakness: CWE-78

Description

Xiaomi routers have an external interface that can lead to command injection. The vulnerability is caused by lax filtering of responses from external interfaces. Attackers can exploit this vulnerability to gain access to the router by hijacking the ISP or upper-layer routing.

Affected products

Xiaomi Multiple Devices: 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=529
https://trust.mi.com/zh-CN/misrc/bulletins/advisory?cveId=529

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