Unauthorized Command Execution in ScadaLTS by Scada Technology
CVE-2026-19656

9.9CRITICAL

Key Information:

Vendor

Scada-lts

Status
Scadalts
Vendor
CVE Published:
12 August 2026

What is CVE-2026-19656?

The ScadaLTS version 2.7.8.1 exposes a server-side method that does not implement necessary authorization checks. This allows authenticated users, even those with basic read-only access, to execute arbitrary operating system commands on the host server. If successfully exploited, this vulnerability can result in code execution within the context of the ScadaLTS server process, potentially leading to a complete compromise of the underlying system.

Affected Version(s)

ScadaLTS 2.7.8.1

References

https://www.tenable.com/security/research/tra-2026-55

CVSS V3.1

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Derrie Sutton, Tenable Research
.