CVE-2023-21820

Windows Distributed File System (DFS) Remote Code Execution Vulnerability

State: Published
Severity: 7.4 High
Published: Feb 14, 2023
Updated: Aug 19, 2026
Reserved: Dec 16, 2022

Description

Windows Distributed File System (DFS) Remote Code Execution Vulnerability

Scores

CVSS	Score	Vector	Source
3.1	7.4 High	CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-126 Buffer Over-read

Affected Products

Product	Versions
Windows 10 Version 1507Microsoft	10.0.10240.0 to before 10.0.10240.19747Affected
Windows 10 Version 1607Microsoft	10.0.14393.0 to before 10.0.14393.5717Affected
Windows 10 Version 1809Microsoft	10.0.17763.0 to before 10.0.17763.4010Affected
Windows 10 Version 1809Microsoft	10.0.0 to before 10.0.17763.4010Affected
Windows 10 Version 20H2Microsoft	10.0.0 to before 10.0.19042.2604Affected
Windows 10 Version 21H2Microsoft	10.0.19043.0 to before 10.0.19044.2604Affected
Windows 10 Version 22H2Microsoft	10.0.19045.0 to before 10.0.19045.2604Affected
Windows 11 version 21H2Microsoft	10.0.0 to before 10.0.22621.1574Affected
Windows 11 version 22H2Microsoft	10.0.22621.0 to before 10.0.22621.1265Affected
Windows Server 2008 Service Pack 2Microsoft	6.0.6003.0 to before 6.0.6003.21915Affected
Windows Server 2008 R2 Service Pack 1Microsoft	6.1.7601.0 to before 6.1.7601.26366Affected
Windows Server 2008 R2 Service Pack 1 (Server Core installation)Microsoft	6.1.7601.0 to before 6.1.7601.26366Affected
Windows Server 2008 Service Pack 2Microsoft	6.0.6003.0 to before 6.0.6003.21915Affected
Windows Server 2008 Service Pack 2 (Server Core installation)Microsoft	6.0.6003.0 to before 6.0.6003.21915Affected
Windows Server 2012Microsoft	6.2.9200.0 to before 6.2.9200.24116Affected
Windows Server 2012 (Server Core installation)Microsoft	6.2.9200.0 to before 6.2.9200.24116Affected
Windows Server 2012 R2Microsoft	6.3.9600.0 to before 6.3.9600.20821Affected
Windows Server 2012 R2 (Server Core installation)Microsoft	6.3.9600.0 to before 6.3.9600.20821Affected
Windows Server 2016Microsoft	10.0.14393.0 to before 10.0.14393.5717Affected
Windows Server 2016 (Server Core installation)Microsoft	10.0.14393.0 to before 10.0.14393.5717Affected
Windows Server 2019Microsoft	10.0.17763.0 to before 10.0.17763.4010Affected
Windows Server 2019 (Server Core installation)Microsoft	10.0.17763.0 to before 10.0.17763.4010Affected
Windows Server 2022Microsoft	10.0.20348.0 to before 10.0.20348.1547Affected

References

Windows Distributed File System (DFS) Remote Code Execution Vulnerabilityvendor-advisorypatch

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.