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

Source: https://junglewise.ai/threats/cve-2026-58543-microsoft-windows-usb-print-driver-privilege-escalation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-14. Updated: 2026-07-14  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/windows-11), [Microsoft Windows Server 2025](https://junglewise.ai/threats/technologies/windows-server-2025). Vendors: [Microsoft](https://junglewise.ai/threats/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](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58543)

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