CVE-2021-47851Public exploitNetwork attack vector

Unauthenticated command execution via JSON script field

Published Jan 21, 2026 · Updated Jan 21, 2026

OS command injection in Yodinfo Mini Mouse 9.2.0 allows remote attackers to execute arbitrary commands through an unauthenticated HTTP endpoint. The /op=command handler accepts a JSON script value and passes its contents to Windows command execution, as demonstrated by certutil and start payloads. Network access to the service on TCP port 8039 is sufficient; commands run with the Mini Mouse host process's privileges and require no user interaction.

CVSS severity9.3
Critical
EPSS probability1.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

OS command injection in Yodinfo Mini Mouse 9.2.0 allows remote attackers to execute arbitrary commands through an unauthenticated HTTP endpoint. The /op=command handler accepts a JSON script value and passes its contents to Windows command execution, as demonstrated by certutil and start payloads. Network access to the service on TCP port 8039 is sufficient; commands run with the Mini Mouse host process's privileges and require no user interaction.

The record

CVE
CVE-2021-47851
Published
Jan 21, 2026
Updated
Jan 21, 2026
Vendor
Yodinfo
Product
Mini Mouse
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=9.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Yodinfo · Mini Mouseversion=9.2.0

Published CVSS scores

9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo