CVE-2026-22553

InSAT MasterSCADA BUK-TS OS Command Injection

Published Feb 24, 2026 CVSS 4.0 · 9.3 Critical EPSS 1.6% KEV · Not listed
Description
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.

Remediation

Vendor Workaround

InSAT has not responded to requests to work with CISA to mitigate these vulnerabilities. Users of the affected products are encouraged to contact info@insat.ru or scada@insat.ru for additional information.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Insat masterscada
CPEs cpe:2.3:a:insat:masterscada:*:*:*:*:*:*:*:*
Vendors & Products Insat masterscada
Type Values Removed Values Added
First Time appeared Insat
Insat masterscada Buk-ts
Vendors & Products Insat
Insat masterscada Buk-ts
Type Values Removed Values Added
Description 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.
Title InSAT MasterSCADA BUK-TS OS Command Injection
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Feb 26, 2026, 7:39 PM
Reserved
Feb 9, 2026, 5:52 PM
Status
Analyzed
Published
Feb 24, 2026, 9:16 PM
Modified
Jun 17, 2026, 10:20 AM