CVE-2025-22469: SATO CL4/6NX Plus · OS Command Injection
Affects SATO CL4/6NX PlusSource CVE Database V5
Not known to be exploited · CVSS 7.3 High · fixed in 1.15.5 : patch SATO CL4/6NX Plus soon.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 1.0% chance of exploitation in 30 days – higher than 64% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.15.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LExploitation 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
- Immediate firmware upgrade to version 1.15.5-r1 or later once available from SATO Corporation to remediate the vulnerability.
- If you cannot patch yet, isolate affected printers on segmented networks with strict access controls to limit exposure.
- Implement network-level firewall rules to restrict access to printer management interfaces only to trusted hosts.
- Monitor network traffic for unusual commands or connections targeting these devices.
- Disable any unnecessary services or interfaces on the printers to reduce attack vectors.
- Employ intrusion detection systems (IDS) tuned to detect OS command injection patterns.
- Conduct regular audits of device firmware versions and configurations to ensure compliance.
- Coordinate with SATO support for timely updates and advisories.
- Educate IT staff about the vulnerability to recognize potential exploitation attempts. These steps go beyond generic advice by focusing on network segmentation, monitoring, and vendor coordination specific to the affected devices.
Description
OS command injection vulnerability exists in CL4/6NX Plus and CL4/6NX-J Plus (Japan model) with the firmware versions prior to 1.15.5-r1. An arbitrary OS command may be executed on the system with a certain non-administrative user privilege.