CVE-2026-6348
Deferred Deferred - Pending Action
Missing Authentication in WinMatrix Agent Enables SYSTEM Code Execution

Publication date: 2026-04-16

Last updated on: 2026-05-19

Assigner: TWCERT/CC

Description
WinMatrix agent developed by Simopro Technology has a Missing Authentication vulnerability, allowing authenticated local attackers to execute arbitrary code with SYSTEM privileges on the local machine as well as on all hosts within the environment where the agent is installed.
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Meta Information
Published
2026-04-16
Last Modified
2026-05-19
Generated
2026-06-16
AI Q&A
2026-04-16
EPSS Evaluated
2026-06-15
NVD
CVE-2026-6348
EUVD
EUVD-2026-23163
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
simopro_technology winmatrix_agent From 3.5.13 (inc) to 3.5.26.15 (inc)
simopro_technology winmatrix_agent to 3.5.27.5 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-306 The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
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Executive Summary

CVE-2026-6348 is a Missing Authentication vulnerability in the WinMatrix agent developed by Simopro Technology. It affects versions 3.5.13 through 3.5.26.15 of the software.

This flaw allows authenticated local attackers—those who already have some level of access on the local machine—to execute arbitrary code with SYSTEM privileges. This means they can run any code they want with the highest level of permissions on the local machine.

Moreover, the vulnerability extends beyond the local machine, allowing attackers to execute code with SYSTEM privileges on all hosts within the environment where the WinMatrix agent is installed.

Compliance Impact

The CVE-2026-6348 vulnerability allows authenticated local attackers to execute arbitrary code with SYSTEM privileges, impacting confidentiality, integrity, and availability of affected systems.

Such a compromise of confidentiality, integrity, and availability could negatively affect compliance with common standards and regulations like GDPR and HIPAA, which require protection of sensitive data and system integrity.

However, the provided information does not explicitly mention the impact on compliance with these standards or regulations.

Impact Analysis

This vulnerability can have severe impacts because it allows an attacker with local authenticated access to gain SYSTEM-level control over the affected machine and all other hosts in the environment running the WinMatrix agent.

  • Complete compromise of confidentiality, allowing unauthorized access to sensitive data.
  • Integrity violations, as attackers can modify or delete data or system configurations.
  • Availability disruptions, since attackers can execute arbitrary code that may disrupt or disable system functions.

Because the vulnerability allows code execution with SYSTEM privileges, it poses a critical risk to the security and stability of affected systems and networks.

Mitigation Strategies

The recommended immediate step to mitigate the CVE-2026-6348 vulnerability is to update the WinMatrix agent to version 3.5.27.5 or later.

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