CVE-2026-58541: Microsoft Windows DWM type confusion privilege escalation

CVE-2026-58541 · Severity: high · CVSS 7.8 · Published 2026-07-14

A security vulnerability has been identified in the Windows Desktop Window Manager (DWM), the component responsible for rendering the visual interface of the Windows operating system. 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, Microsoft Windows 10, Microsoft Windows Server 2016. Vendors: Microsoft.

Quick answers

Is CVE-2026-58541 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-58541 being exploited in the wild.
How severe is CVE-2026-58541?
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; Microsoft Windows 10 10.0.14393.0 to 10.0.14393.9339; Microsoft Windows Server 2016 10.0.14393.0 to 10.0.14393.9339.
Is there a fix for CVE-2026-58541?
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-2026-58541 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2026-58541?
Check whether you run Microsoft Windows 11, Microsoft Windows 10 or Microsoft Windows Server 2016 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 type confusion vulnerability (CWE-843) exists in the Windows Desktop Window Manager (DWM) due to the improper handling of resources using incompatible types. An attacker with low-privileged local access can exploit this flaw by executing a specially crafted application to trigger the type confusion. Successful exploitation allows the attacker to gain elevated system privileges, potentially leading to a full compromise of the affected host. Microsoft has released security updates to address this issue across various versions of Windows 10, Windows 11, and Windows Server.

Affected products

  • Microsoft Windows 10 Version 1607 10.0.14393.0 to 10.0.14393.9339
  • Microsoft Windows 10 Version 1809 10.0.17763.0 to 10.0.17763.9020
  • Microsoft Windows 10 Version 21H2 10.0.19044.0 to 10.0.19044.7548
  • Microsoft Windows 10 Version 22H2 10.0.19045.0 to 10.0.19045.7548
  • Microsoft Windows 11 Version 24H2 10.0.26100.0 to 10.0.26100.8875
  • Microsoft Windows Server 2016 10.0.14393.0 to 10.0.14393.9339

Timeline

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

References

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