CVE-2020-16921

CVE.org · Published

Record status: Published
Identifier year (not publication year): 2020
Source publication: Oct 16, 2020
Source updated: Nov 15, 2024
Imported by cveboard: Oct 24, 2026
Source snapshot: cve_2026-10-24_midnight_baseline · Oct 24, 2026

CNA source text (English)

Windows Text Services Framework Information Disclosure Vulnerability

An information disclosure vulnerability exists in Text Services Framework when it fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could potentially read data that was not intended to be disclosed. Note that this vulnerability would not allow an attacker to execute code or to elevate their user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system. To exploit this vulnerability, an attacker would have to log on to an affected system and open a specially crafted file. The update addresses the vulnerability by correcting how Text Services Framework handles objects in memory.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Windows 10 Version 1803

Vendor: Microsoft
Product: Windows 10 Version 1803
Platforms: 32-bit Systems
x64-based Systems
ARM64-based Systems
Default status: Unknown

Windows 10 Version 1803 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed

Windows 10 Version 1809

Vendor: Microsoft
Product: Windows 10 Version 1809
Platforms: 32-bit Systems
x64-based Systems
ARM64-based Systems
Default status: Unknown

Windows 10 Version 1809 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed

Windows Server 2019

Vendor: Microsoft
Product: Windows Server 2019
Platforms: x64-based Systems
Default status: Unknown

Windows Server 2019 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed

Windows Server 2019 (Server Core installation)

Vendor: Microsoft
Product: Windows Server 2019 (Server Core installation)
Platforms: x64-based Systems
Default status: Unknown

Windows Server 2019 (Server Core installation) · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed

Windows 10 Version 1909

Vendor: Microsoft
Product: Windows 10 Version 1909
Platforms: 32-bit Systems
x64-based Systems
ARM64-based Systems
Default status: Unknown

Windows 10 Version 1909 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed

Windows Server, version 1909 (Server Core installation)

Vendor: Microsoft
Product: Windows Server, version 1909 (Server Core installation)
Platforms: x64-based Systems
Default status: Unknown

Windows Server, version 1909 (Server Core installation) · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed

Windows 10 Version 1709 for 32-bit Systems

Vendor: Microsoft
Product: Windows 10 Version 1709 for 32-bit Systems
Platforms: 32-bit Systems
Default status: Unknown

Windows 10 Version 1709 for 32-bit Systems · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed

Windows 10 Version 1709

Vendor: Microsoft
Product: Windows 10 Version 1709
Platforms: x64-based Systems
ARM64-based Systems
Default status: Unknown

Windows 10 Version 1709 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed

Windows 10 Version 1903 for 32-bit Systems

Vendor: Microsoft
Product: Windows 10 Version 1903 for 32-bit Systems
Platforms: Unknown
Default status: Unknown

Windows 10 Version 1903 for 32-bit Systems · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed

Windows 10 Version 1903 for x64-based Systems

Vendor: Microsoft
Product: Windows 10 Version 1903 for x64-based Systems
Platforms: Unknown
Default status: Unknown

Windows 10 Version 1903 for x64-based Systems · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed

Windows 10 Version 1903 for ARM64-based Systems

Vendor: Microsoft
Product: Windows 10 Version 1903 for ARM64-based Systems
Platforms: Unknown
Default status: Unknown

Windows 10 Version 1903 for ARM64-based Systems · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed

Windows Server, version 1903 (Server Core installation)

Vendor: Microsoft
Product: Windows Server, version 1903 (Server Core installation)
Platforms: x64-based Systems
Default status: Unknown

Windows Server, version 1903 (Server Core installation) · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed

Windows 10 Version 2004

Vendor: Microsoft
Product: Windows 10 Version 2004
Platforms: 32-bit Systems
ARM64-based Systems
x64-based Systems
Default status: Unknown

Windows 10 Version 2004 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed

Windows Server version 2004

Vendor: Microsoft
Product: Windows Server version 2004
Platforms: x64-based Systems
Default status: Unknown

Windows Server version 2004 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
10.0.0	`affected`	custom	publication	Unavailable	None listed