Executive brief
A security vulnerability exists in the Windows WalletService, a component that manages digital payment and credential information. 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 WalletService due to improper privilege management and improper link resolution (CWE-59). An attacker with local access and low-level user privileges can exploit this flaw by manipulating file system links before the service accesses them. Successful exploitation allows the attacker to execute code with SYSTEM privileges, effectively gaining full control over the affected host. Microsoft has released security updates to address this issue across multiple versions of Windows 10, Windows 11, and Windows Server 2016.
Affected products
- Microsoft Windows 10 1607, 1809, 21H2, 22H2
- Microsoft Windows 11 24H2, 25H2, 26H1
- Microsoft Windows Server 2016 Standard and Server Core
Timeline
- 2026-07-14: disclosed: Initial publication by Microsoft and NVD.
- 2026-07-14: patched: Security updates made available via Microsoft Security Response Center.