CVE-2026-58543 — MEDIUM (6.3)

Q: What is CVE-2026-58543?

CVE-2026-58543 is a vulnerability with a CVSS score of 6.3 (MEDIUM). Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Print Driver allows an authorized attacker to elevate privileges with a physical attack.

Q: How severe is CVE-2026-58543?

CVE-2026-58543 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-58543?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 11 24H2, Microsoft Windows 11 25H2, Microsoft Windows 11 26H1, Microsoft Windows Server 2025.

Vulnerability Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Print Driver allows an authorized attacker to elevate privileges with a physical attack.

CVSS Score

6.3

MEDIUM

CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

PHYSICAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Windows 11 24H2	< 10.0.26100.8875
Microsoft	Windows 11 25H2	< 10.0.26200.8875
Microsoft	Windows 11 26H1	< 10.0.28000.2269
Microsoft	Windows Server 2025	< 10.0.26100.33158

Related Weaknesses (CWE)

CWE-362 CWE-416

References

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

FAQ

What is CVE-2026-58543?

CVE-2026-58543 is a vulnerability with a CVSS score of 6.3 (MEDIUM). Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Print Driver allows an authorized attacker to elevate privileges with a physical attack.

How severe is CVE-2026-58543?

CVE-2026-58543 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-58543?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 11 24H2, Microsoft Windows 11 25H2, Microsoft Windows 11 26H1, Microsoft Windows Server 2025.