CVE-2025-22470Network attack vector

Root code execution via dangerous file upload

Published Aug 6, 2025 · Updated Aug 6, 2025

Unrestricted file upload in SATO CL4/6NX Plus series before 1.15.5-r1 allows remote attackers to execute Lua scripts as root. The WebConfig interface accepts a crafted dangerous file and runs its Lua content with root privileges instead of rejecting the file type. The interface must be network-reachable; successful exploitation can alter printer data or interrupt printing.

CVSS severity9.3
Critical
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in SATO CL4/6NX Plus series before 1.15.5-r1 allows remote attackers to execute Lua scripts as root. The WebConfig interface accepts a crafted dangerous file and runs its Lua content with root privileges instead of rejecting the file type. The interface must be network-reachable; successful exploitation can alter printer data or interrupt printing.

The record

CVE
CVE-2025-22470
Published
Aug 6, 2025
Updated
Aug 6, 2025
Vendor
SATO Corporation
Product
CL4/6NX-J Plus
Classifications
CWE-434, T1190, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2025Record 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=prior to firmware 1.15.5-r1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SATO Corporation · CL4/6NX-J Plusversion=prior to firmware 1.15.5-r1
SATO Corporation · CL4/6NX Plusversion=prior to firmware 1.15.5-r1

Published CVSS scores

9.8JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3JPCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application
T1059Command and Scripting Interpreter

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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