Is CVE-2026-58543 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-58543 being exploited in the wild.

How severe is CVE-2026-58543?

Medium severity, with a CVSS score of 6.3, 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-2026-58543?

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-2026-58543 attacked?

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

Am I affected by CVE-2026-58543?

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.

CVE-2026-58543: Microsoft Windows USB Print Driver privilege escalation

CVE-2026-58543 · Severity: medium · CVSS 6.3 · Published 2026-07-14

A security vulnerability exists in the Windows USB Print Driver, which manages how the computer communicates with printers connected via USB. An attacker with physical access to a device could exploit this flaw to gain higher-level system permissions, potentially allowing them to bypass security controls or access restricted data. This requires the attacker to have a low-privileged account on the machine and perform specific actions while physically connected to the device.

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

Quick answers

Is CVE-2026-58543 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-58543 being exploited in the wild.
How severe is CVE-2026-58543?: Medium severity, with a CVSS score of 6.3, 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-2026-58543?: 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-2026-58543 attacked?: It is attacked with physical access, in an operating system.
Am I affected by CVE-2026-58543?: 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 race condition (CWE-362) and potential use-after-free (CWE-416) vulnerability exist in the Windows USB Print Driver due to improper synchronization of shared resources. The attack vector is physical (AV:P), requiring the attacker to have local user credentials (PR:L) and physical access to the target machine to manipulate USB communication. Successful exploitation allows an attacker to elevate privileges to a higher level, such as SYSTEM. Microsoft has released security updates for affected versions of Windows 11 and Windows Server 2025 to address this 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 10.0.26100.8875
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: advisory: Initial publication by Microsoft and NVD

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58543

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