CVE-2020-16921
MEDIUMWindows 10 and Windows Server 2016/2019 - Information Disclosure in Text Services Framework
Title source: llmDescription
<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
Patch, Vendor Advisory x_refsource_misc
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16921
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