CVE-2020-14124Network attack vector

Unauthenticated code execution via getWifiPwdUrl buffer overflow

Published Sep 16, 2021 · Updated Aug 4, 2024

A buffer overflow in Xiaomi Mi AIoT Router AX3600 ROM before 1.1.12 allows remote attackers to execute code through getWifiPwdUrl. Xiaomi locates the overflow in librsa.so when the interface calls it, but does not disclose the unsafe copy operation or input field. No authentication or user interaction is required; successful exploitation executes attacker-controlled code on the router.

CVSS severity9.8
Critical
EPSS probability1.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A buffer overflow in Xiaomi Mi AIoT Router AX3600 ROM before 1.1.12 allows remote attackers to execute code through getWifiPwdUrl. Xiaomi locates the overflow in librsa.so when the interface calls it, but does not disclose the unsafe copy operation or input field. No authentication or user interaction is required; successful exploitation executes attacker-controlled code on the router.

The record

CVE
CVE-2020-14124
Published
Sep 16, 2021
Updated
Aug 4, 2024
Vendor
Xiaomi Corporation
Product
Mi AIoT Router AX3600
Classifications
CWE-120, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 16, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Xiaomi Router AX3600 rom rom< 1.1.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Xiaomi Corporation · Mi AIoT Router AX3600version=Xiaomi Router AX3600 rom rom< 1.1.12

Published CVSS scores

9.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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