CVE-2026-50674: Microsoft Windows USB Print Driver use after free privilege escalation

CVE-2026-50674 · Severity: high · CVSS 7 · Published 2026-07-14

A security vulnerability exists in the Windows USB Print Driver, which manages communication between the operating system and USB-connected printers. An attacker who already has basic access to a computer could exploit this flaw to gain full administrative control over the system. This could lead to the theft of sensitive data, the installation of malicious software, or a complete system takeover.

Technologies: Microsoft Windows 11, Microsoft Windows Server 2025. Vendors: Microsoft.

Quick answers

Is CVE-2026-50674 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-50674 being exploited in the wild.
How severe is CVE-2026-50674?
High severity, with a CVSS score of 7, published 14 July 2026.
Which products and versions are affected?
Microsoft Windows 11 10.0.26100.0 to 10.0.26100.8875; Microsoft Windows Server 2025 10.0.26100.0 to 10.0.26100.33158.
Is there a fix for CVE-2026-50674?
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-2026-50674 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2026-50674?
Check whether you run Microsoft Windows 11 or Microsoft Windows Server 2025 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 use-after-free vulnerability (CWE-416) exists in the Windows USB Print Driver. The flaw is triggered when the driver incorrectly manages memory objects, allowing an attacker to reuse a memory pointer after it has been freed. To exploit this, an attacker must have local access to the system with low-level privileges and successfully win a race condition or navigate high complexity execution paths (AC:H). Successful exploitation allows the attacker to execute arbitrary code with elevated kernel-mode privileges. Microsoft has released security updates to address this issue across affected versions of Windows 11 and Windows Server 2025.

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
  • Microsoft Windows Server 2025 10.0.26100.0 to 10.0.26100.33158

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.