CVE-2026-50676: Microsoft Windows Media privilege escalation via race condition

CVE-2026-50676 · Severity: high · CVSS 7.8 · Published 2026-07-14

A security vulnerability exists in Windows Media components that could allow a user with basic access to a computer to gain full administrative control. By exploiting a timing issue in how the system handles media resources, an attacker can bypass security restrictions to access sensitive data or modify system settings. This poses a significant risk to the integrity of the operating system and the confidentiality of user information.

Technologies: Microsoft Windows 11 Version 24H2, Microsoft Windows 11 Version 25H2, Microsoft Windows 11 Version 26H1. Vendors: Microsoft.

Quick answers

Is CVE-2026-50676 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-50676 being exploited in the wild.
How severe is CVE-2026-50676?
High severity, with a CVSS score of 7.8, published 14 July 2026.
Which products and versions are affected?
Microsoft Windows 11 Version 24H2 10.0.26100.0 to 10.0.26100.8875; Microsoft Windows 11 Version 25H2 10.0.26200.0 to 10.0.26200.8875; Microsoft Windows 11 Version 26H1 10.0.28000.0 to 10.0.28000.2525.
Is there a fix for CVE-2026-50676?
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-2026-50676 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2026-50676?
Check whether you run Microsoft Windows 11 Version 24H2, Microsoft Windows 11 Version 25H2 or Microsoft Windows 11 Version 26H1 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

A race condition (CWE-362) and subsequent use-after-free (CWE-416) vulnerability exist in Windows Media due to improper synchronization when accessing shared resources. An attacker with low-privileged local access can exploit this flaw by executing a specially crafted application that triggers concurrent execution conflicts. Successful exploitation allows the attacker to gain SYSTEM-level privileges on the local machine. The vulnerability affects multiple versions of Windows 11, and Microsoft has released security updates to address the issue.

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 10.0.26200.8875
  • Microsoft Windows 11 version 26H1 10.0.28000.0 to 10.0.28000.2525

Timeline

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

References

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