CVE-2021-47850Public exploitNetwork attack vectorHinoki check available

Unauthenticated file disclosure via unrestricted path parameters

Published Jan 21, 2026 · Updated Jan 21, 2026

Path traversal in Yodinfo Mini Mouse 9.2.0 allows remote attackers to read arbitrary host files through crafted HTTP requests. The HTTP service accepts an absolute path from either the GET file parameter or the POST get_file_list JSON body and resolves it without restricting access to an intended directory. No authentication or user interaction is required; demonstrated requests expose file contents and directory listings from a Windows host on TCP port 8039.

CVSS severity8.7
High
EPSS probability1.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in Yodinfo Mini Mouse 9.2.0 allows remote attackers to read arbitrary host files through crafted HTTP requests. The HTTP service accepts an absolute path from either the GET file parameter or the POST get_file_list JSON body and resolves it without restricting access to an intended directory. No authentication or user interaction is required; demonstrated requests expose file contents and directory listings from a Windows host on TCP port 8039.

The record

CVE
CVE-2021-47850
Published
Jan 21, 2026
Updated
Jan 21, 2026
Vendor
Yodinfo
Product
Mini Mouse
Classifications
CWE-22, T1005, T1083
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

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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=9.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Yodinfo · Mini Mouseversion=9.2.0

Published CVSS scores

8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System
T1083File and Directory Discovery

Public exploit references

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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