CVE-2020-16912: Windows Backup Service Elevation of Privilege Vulnerability

Overview

Severity

High (CVSS 7.8)

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Category

Elevation of Privilege

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2020-Oct

Released

2020-10-13

EPSS Score

0.42% (percentile: 61.7%)

Description

An elevation of privilege vulnerability exists when the Windows Backup Service improperly handles file operations. To exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges. The security update addresses the vulnerability by correcting how the Windows Backup Service handles file operations.

Affected Products (33)

Other

• 11497
• 11498
• 11563
• 11568
• 11569
• 11570
• 11571
• 11572
• 11712
• 11713
• 11714
• 11715
• 11453
• 11454
• 11583
• 11644
• 11645
• 11646
• 11647
• 11766
• 11767
• 11768
• 11769
• 10729
• 10735
• 10852
• 10853
• 10816
• 10855
• 10047
• 10048
• 10051
• 10049

Security Updates (9)

• 4580330
• 4577668
• 4577671
• 4580328
• 4579311
• 4580327
• 4580346
• 4580345
• 4580387

Acknowledgments

Yuki Chen

Revision History

• 2020-10-13: Information published.