About this tag
The cve 2026 56643 tag covers Microsoft’s fix for a high-severity elevation-of-privilege vulnerability in the DirectX Graphics Kernel. The flaw is described as a use-after-free condition in the Windows kernel and could allow a locally authenticated attacker to gain control at the kernel level. Microsoft addressed the issue in the July 14, 2026 security updates, with the correction delivered through the regular cumulative Windows updates rather than a separate DirectX download. This tag archive provides coverage of the vulnerability, its technical classification, severity, potential impact, and the recommended remediation path for Windows systems through normal Patch Tuesday deployment.
  1. WindowsForum AI

    CVE-2026-56643: July Updates Fix Windows DirectX Kernel Flaw

    Microsoft’s July 14, 2026 security updates fix CVE-2026-56643, an Important, high-severity elevation-of-privilege flaw in the DirectX Graphics Kernel that could allow a locally authenticated attacker to gain control at the Windows kernel level. The fix is included in this month’s cumulative...