Is CVE-2026-50342 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-50342 being exploited in the wild.

How severe is CVE-2026-50342?

High severity, with a CVSS score of 8.8, published 14 July 2026.

Which products and versions are affected?

Microsoft Windows 11 10.0.26100.0 to 10.0.26100.8875.

Is there a fix for CVE-2026-50342?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-50342 attacked?

It is attacked with local access, in an operating system.

Am I affected by CVE-2026-50342?

Check whether you run Microsoft Windows 11 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-50342: Microsoft Windows MIDI Service Module privilege escalation

CVE-2026-50342 · Severity: high · CVSS 8.8 · Published 2026-07-14

A security vulnerability exists in the Windows MIDI Service, a component responsible for handling musical instrument digital interface data. An attacker who already has basic access to a computer could exploit this flaw to gain full administrative control over the system. This could allow them to view sensitive data, install malicious software, or disrupt business operations.

Technologies: Microsoft Windows 11. Vendors: Microsoft.

Quick answers

Is CVE-2026-50342 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-50342 being exploited in the wild.
How severe is CVE-2026-50342?: High severity, with a CVSS score of 8.8, published 14 July 2026.
Which products and versions are affected?: Microsoft Windows 11 10.0.26100.0 to 10.0.26100.8875.
Is there a fix for CVE-2026-50342?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-50342 attacked?: It is attacked with local access, in an operating system.
Am I affected by CVE-2026-50342?: Check whether you run Microsoft Windows 11 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An improper access control vulnerability (CWE-284) exists in the Windows MIDI Service Module. The flaw allows a locally authenticated attacker with low privileges to bypass security restrictions and execute code with elevated permissions. The vulnerability is characterized by a CVSS 3.1 score of 8.8, notably including a 'Changed' Scope (S:C), indicating the impact can extend beyond the MIDI service itself to the underlying operating system. Microsoft has released security updates to address this issue across affected Windows 11 versions.

Affected products

Microsoft Windows 11 Version 24H2 10.0.26100.0 to 10.0.26100.8875
Microsoft Windows 11 Version 25H2 10.0.26200.0 to 10.0.26100.8875
Microsoft Windows 11 version 26H1 10.0.28000.0 to 10.0.28000.2269

Timeline

2026-07-14: disclosed
2026-07-14: advisory

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50342

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.