Executive brief
A security vulnerability has been identified in the Windows Filtering Platform, a core component that manages network traffic for the Windows operating system. An attacker who already has basic access to a computer could exploit this flaw to gain full administrative control over the system. This could allow them to view sensitive data, install malicious software, or disrupt business operations.
Technical details
A privilege escalation vulnerability exists in the Windows Filtering Platform (WFP) due to insufficient granularity of access control (CWE-1220). An attacker with local access and low-level user privileges can exploit this flaw to gain SYSTEM-level permissions. The attack vector is local and requires no user interaction, though the attacker must already have an authenticated foothold on the target system. Microsoft has released security updates to address this issue across affected versions of Windows 10, Windows 11, and Windows Server.
Affected products
- Microsoft Windows 10 1607, 1809, 21H2, 22H2
- Microsoft Windows 11 24H2, 25H2, 26H1
- Microsoft Windows Server 2012 All versions
Timeline
- 2026-07-14: advisory: Initial publication by Microsoft and NVD
- 2026-07-14: patched: Security updates released by Microsoft