CVE-2026-56188

Name of the Vulnerable Software and Affected Versions Windows Server versions 2012 through 2025 Windows 10 (affected versions not specified) Windows 11 (affected versions not specified)

Description A race condition exists in the Windows Server Network driver. A race condition occurs when the timing or order of events affects the correctness of the code, typically due to improper synchronization of shared resources during concurrent execution. This flaw allows an unauthorized, unauthenticated remote attacker to execute arbitrary code over the network and affect the system.

Recommendations Update Windows Server versions 2012 through 2025 to the latest patched version. Update Windows 10 to the latest patched version. Update Windows 11 to the latest patched version.