How severe is CVE-2026-21410?

CVE-2026-21410 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-21410 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-21410?

CVE-2026-21410 affects Insat Masterscada. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-21410?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-21410 have an EU (EUVD) identifier?

Yes. CVE-2026-21410 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8562.

When was CVE-2026-21410 published?

CVE-2026-21410 was published on 2026-02-24 and last updated on 2026-06-17.

CVE-2026-21410

CVE-2026-21410 is a critical-severity vulnerability in Insat Masterscada with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8562
Weakness: CWE-89
Affected product: Insat Masterscada
Published: 2026-02-24
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-21410?: CVE-2026-21410 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-21410 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-21410?: CVE-2026-21410 affects Insat Masterscada. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-21410?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-21410 have an EU (EUVD) identifier?: Yes. CVE-2026-21410 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8562.
When was CVE-2026-21410 published?: CVE-2026-21410 was published on 2026-02-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:insat:masterscada:*:*:*:*:*:*:*:*

More vulnerabilities in Insat Masterscada

CVE-2026-22553 — Critical (CVSS 9.8): All versions of InSAT MasterSCADA BUK-TS are susceptible to OS command injection through a field in its MMadmServ web…

All CVEs affecting Insat Masterscada →

Other CWE-89 (SQL Injection) vulnerabilities

CVE-2026-54350 — Critical (CVSS 10.0): Budibase is an open-source low-code platform. Prior to 3.39.12, an unauthenticated visitor of any published Budibase…
CVE-2026-8054 — Critical (CVSS 10.0): Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in the Publish Audit API endpoints…
CVE-2026-42287 — Critical (CVSS 10.0): Emlog is an open source website building system. Prior to version 2.6.11, direct SQL injection in article creation and…
CVE-2026-3325 — Critical (CVSS 10.0): SQL injection (SQLi) in MegaCMS v12.0.0, specifically in the “id_territorio” parameter of the…
CVE-2025-10878 — Critical (CVSS 10.0): A SQL injection vulnerability exists in the login functionality of Fikir Odalari AdminPando 1.0.1 before 2026-01-26.…
CVE-2025-57792 — Critical (CVSS 10.0): Explorance Blue versions prior to 8.14.9 contain a SQL injection vulnerability caused by insufficient validation of…

Browse all CWE-89 (SQL Injection) vulnerabilities →