CVE-2021-26885: Windows WalletService Elevation of Privilege Vulnerability

Overview

Severity

High (CVSS 7.8)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Elevation of Privilege

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2021-Mar

Released

2021-03-09

EPSS Score

24.54% (percentile: 96.1%)

Affected Products (19)

Windows

• Windows 10 Version 1803 for 32-bit Systems
• Windows 10 Version 1803 for x64-based Systems
• Windows 10 Version 1803 for ARM64-based Systems
• Windows 10 Version 1809 for 32-bit Systems
• Windows 10 Version 1809 for x64-based Systems
• Windows 10 Version 1809 for ARM64-based Systems
• Windows 10 Version 1909 for 32-bit Systems
• Windows 10 Version 1909 for x64-based Systems
• Windows 10 Version 1909 for ARM64-based Systems
• Windows 10 Version 2004 for 32-bit Systems
• Windows 10 Version 2004 for ARM64-based Systems
• Windows 10 Version 2004 for x64-based Systems
• Windows 10 Version 20H2 for x64-based Systems
• Windows 10 Version 20H2 for 32-bit Systems
• Windows 10 Version 20H2 for ARM64-based Systems
• Windows 10 for 32-bit Systems
• Windows 10 for x64-based Systems
• Windows 10 Version 1607 for 32-bit Systems
• Windows 10 Version 1607 for x64-based Systems

Security Updates (6)

• 5000809
• 5000822
• 5000808
• 5000802
• 5000807
• 5000803

Acknowledgments

Xuefeng Li (<a href="https://twitter.com/lxf02942370">@lxf02942370</a>) of <a href="https://www.sangfor.com/">Sangfor</a> & Zhiniang Peng (<a href="https://twitter.com/edwardzpeng">@edwardzpeng</a>) of <a href="https://www.sangfor.com/">Sangfor</a>

Revision History

• 2021-03-09: Information published.