CVE-2026-21410: InSAT MasterSCADA BUK-TS is susceptible to SQL Injection through its main web interface

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CRITICAL 9.8REMOTEMITIGATE

CVE-2026-21410 is a critical-severity flaw (CVSS 9.8) affecting masterscada. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-89
Published	2026-02-24
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: insat

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-24 21:16 UTCPublished CVE record published
2026-06-17 10:18 UTCUpdated Record last modified

insat masterscada MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy masterscada || rpm -q masterscada || masterscada --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-21410?

masterscada: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-21410 being exploited?

CVE-2026-21410 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-21410 affect?

CVE-2026-21410 affects masterscada. Severity is critical (CVSS 9.8). 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.

How urgent is CVE-2026-21410?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-22553 CRITICAL 9.8 MITIGATE All versions of InSAT MasterSCADA BUK-TS are susceptible to OS command injection through a field in its MMadmS

References

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