An elevation of privilege vulnerability exists when the Windows Update Stack fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application to take control of an affected system. The update addresses the vulnerability by correcting how the Windows Update Stack handles objects in memory.
History

Wed, 19 Aug 2026 16:45:00 +0000

Type Values Removed Values Added
Description An elevation of privilege vulnerability exists when the Windows Update Stack fails to properly handle objects in memory, aka 'Windows Update Stack Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1109. An elevation of privilege vulnerability exists when the Windows Update Stack fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application to take control of an affected system. The update addresses the vulnerability by correcting how the Windows Update Stack handles objects in memory.
Title Windows Update Stack Elevation of Privilege Vulnerability
First Time appeared Microsoft windows 10 1809
Microsoft windows 10 1909
Microsoft windows Server 1803
Microsoft windows Server 1903
Microsoft windows Server 1909
CPEs cpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_server_1803:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_1903:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_1909:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
Vendors & Products Microsoft windows 10 1809
Microsoft windows 10 1909
Microsoft windows Server 1803
Microsoft windows Server 1903
Microsoft windows Server 1909
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C'}


cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-08-19T16:33:37.111Z

Reserved: 2019-11-04T00:00:00.000Z

Link: CVE-2020-1110

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-05-21T23:15:14.993

Modified: 2026-08-19T17:17:18.700

Link: CVE-2020-1110

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.