CVE-2025-22470: SATO CL4/6NX Plus · Unrestricted File Upload
Affects SATO CL4/6NX PlusSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 12:55 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 54% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 6 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| SATO Corporation CL4/6NX Plus | Affected
| Fixed in– |
AI-suggested
Organizations should immediately verify the firmware version of all deployed SATO CL4/6NX Plus and CL4/6NX-J Plus printers and upgrade to firmware version 1.15.5-r1 or later where this vulnerability is patched. If immediate patching is not feasible, network segmentation should be enforced to isolate these printers from untrusted networks and restrict access to trusted administrators only. Implement strict access controls and monitor network traffic for unusual upload attempts or unauthorized Lua script executions. Disable or restrict file upload functionalities if not required. Additionally, conduct regular audits of device configurations and logs to detect potential exploitation attempts. Vendors and integrators should be engaged to ensure secure deployment practices and timely updates. Finally, organizations should incorporate these devices into their vulnerability management and incident response plans to rapidly address any exploitation attempts.
Description
CL4/6NX Plus and CL4/6NX-J Plus (Japan model) with the firmware versions prior to 1.15.5-r1 allow crafted dangerous files to be uploaded. An arbitrary Lua script may be executed on the system with the root privilege.