Product:
Windows WalletService
Summary
Concurrent execution using shared resource with improper synchronization in Windows WalletService allows an unauthorized attacker to elevate privileges locally. This vulnerability can lead to significant security risks if exploited. Attackers can gain higher privileges than intended, potentially compromising the system.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7.4 | CVE-2026-20853 |
Exploitation
To exploit this vulnerability, an attacker must have local access to the system. By executing concurrent processes that access shared resources without proper synchronization, the attacker can manipulate the execution flow to gain elevated privileges. This requires a high level of technical skill and knowledge of the system’s architecture.
Affected Products
- Windows WalletService: A service that manages digital wallet functionalities, vulnerable to privilege escalation due to improper synchronization.
Mitigation
To mitigate this vulnerability, users should ensure that their systems are updated with the latest security patches from Microsoft. Additionally, restricting local access to sensitive systems can help reduce the risk of exploitation. Regular security audits and monitoring for unusual activity are also recommended.