Critical severity · published Feb 24, 2026
CVE-2026-21410
InSAT MasterSCADA BUK-TS SQL Injection
9.8
CVSS
0.6%
EPSS
No
On KEV
Description
InSAT MasterSCADA BUK-TS is susceptible to SQL Injection through its main web interface. Malicious users that use the vulnerable endpoint are potentially able to cause remote code execution.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MB
MasterSCADA BUK-TS · InSAT
All versions · source: vendor
MA
Masterscada · Insat
All versions, or not specified · source: NVD
In the news
VulnerabilityMedium
InSAT MasterSCADA BUK-TS
View CSAF
Summary
Successful exploitation of these vulnerabilities may allow remote code execution.
The following versions of InSAT MasterSCADA BUK-TS are affected:
MasterSCADA BUK-TS vers:all/* (CVE-2026-21410, CVE-2026-22553)
CVSS
Vendor
Equipment
Vulnerabilities
v3 9.8
InSAT
InSAT MasterSCADA BUK-TS
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Background
Critical Infrastructure Sectors: Critical Manufacturing, Energy, Water and Wastewater
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Russia
Vulnerabilities
Expand All +
CVE-2026-21410
InSAT MasterSCADA BUK-TS is susceptible to SQL Injection through its main web interface. Malicious users that use the vulnerable endpoint are potentially able to cause remote code execution.
View CVE Details
Affected Products
InSAT MasterSCADA BUK-TS
Vendor: InSAT
Product Version: InSAT MasterSCADA BUK-TS: vers:all/*
Product Status: known_affected
Remediations
Mitigation 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.
Mitigation InSAT has not responded to requests to work with CISA to mitigate these vulnerabi...
Feb 24, 2026·CISA Advisories
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-21410
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-21410
Third Party Advisory
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-055-01.json
Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-26-055-01
More from MasterSCADA BUK-TS
9.8
CVE-2026-22553
InSAT MasterSCADA BUK-TS OS Command Injection
