CVE-2026-22553
InSAT MasterSCADA BUK-TS OS Command Injection
- Published
- Feb 24, 2026
- Updated
- Feb 26, 2026
- Assigning CNA
- icscert
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XLow · next 30 days
- Percentile
- 71.5%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
All versions of InSAT MasterSCADA BUK-TS are susceptible to OS command injection through a field in its MMadmServ web interface. Malicious users that use the vulnerable endpoint are potentially able to cause remote code execution.
Sources
1Unauthenticated OS command injection exploit for InSAT MasterSCADA BUK-TS MMadmServ web interface. Delivers reverse shell with root privileges via HTTP POST request. CVSS 9.8 critical.
Responsible use
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