CVE-2020-16921

MEDIUM

Windows 10 and Windows Server 2016/2019 - Information Disclosure in Text Services Framework

Title source: llm
STIX 2.1

Description

<p>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.</p> <p>To exploit this vulnerability, an attacker would have to log on to an affected system and open a specially crafted file.</p> <p>The update addresses the vulnerability by correcting how Text Services Framework handles objects in memory.</p>

References (1)

Core 1
Core References

Scores

CVSS v3 5.5
EPSS 0.0125
EPSS Percentile 66.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (10)
microsoft/windows_10 1709
microsoft/windows_10 1803
microsoft/windows_10 1809
microsoft/windows_10 1903
microsoft/windows_10 1909
microsoft/windows_10 2004
microsoft/windows_server_2016 1903
microsoft/windows_server_2016 1909
microsoft/windows_server_2016 2004
microsoft/windows_server_2019
Published Oct 16, 2020
Tracked Since Feb 18, 2026