Elevation of Privilege Vulnerability in Windows Smart Card by Microsoft
CVE-2025-59505
Key Information:
- Vendor
Microsoft
- Status
- Vendor
- CVE Published:
- 11 November 2025
What is CVE-2025-59505?
A critical security vulnerability exists within the Windows Smart Card that allows an authorized attacker to exploit a double free condition, leading to potential elevation of privileges on the affected system. By leveraging this vulnerability, an attacker can gain higher-level access, which could further compromise system resources and sensitive data. Organizations using affected versions of Windows Smart Card Reader should assess their security posture and apply necessary mitigations.

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Affected Version(s)
Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.8594
Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.8027
Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.6575
References
CVSS V3.1
Timeline
Vulnerability published
Vulnerability Reserved