Is CVE-2026-50677 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-50677 being exploited in the wild.

How severe is CVE-2026-50677?

High severity, with a CVSS score of 7.8, 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-2026-50677?

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-2026-50677 attacked?

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

Am I affected by CVE-2026-50677?

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-2026-50677: Microsoft Windows Media use after free privilege escalation

CVE-2026-50677 · Severity: high · CVSS 7.8 · Published 2026-07-14

A security vulnerability exists in the Windows Media component of Microsoft Windows 11. This flaw allows a user who already has basic access to a computer to gain higher-level administrative permissions. If exploited, an attacker could take full control of the system, potentially accessing sensitive data or installing malicious software.

Technologies: Microsoft Windows 11. Vendors: Microsoft.

Quick answers

Is CVE-2026-50677 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-50677 being exploited in the wild.
How severe is CVE-2026-50677?: High severity, with a CVSS score of 7.8, 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-2026-50677?: 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-2026-50677 attacked?: It is attacked with local access, in an operating system.
Am I affected by CVE-2026-50677?: 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

This vulnerability is classified as a use-after-free (CWE-416) resulting from a race condition (CWE-362) within the Windows Media component. An attacker with local access and low privileges can exploit this flaw by triggering improper synchronization during concurrent execution, leading to the use of memory after it has been freed. Successful exploitation allows the attacker to execute code with elevated privileges, potentially gaining SYSTEM-level access. 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: Initial publication by Microsoft and NVD.
2026-07-14: advisory

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50677

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