Medium severity · published Feb 14, 2023
CVE-2023-21567
Visual Studio Denial of Service Vulnerability
5.6
CVSS
0.8%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VS
Visual Studio 2017 · Microsoft
15.0 before 15.9.52 · source: NVD
VS
Visual Studio 2019 · Microsoft
16.0 before 16.11.24 · source: NVD
VS
Visual Studio 2022 · Microsoft
17.0 before 17.0.19; 17.2 before 17.2.13; 17.4 before 17.4.5 · source: NVD
Affected product
VS
Visual Studio 2017
Microsoft
More from Visual Studio 2017
7.8
CVE-2020-1147
Microsoft .NET Framework, SharePoint, and Visual Studio Remote Code Execution Vulnerability
9.8
CVE-2026-47304
.NET Security Feature Bypass Vulnerability
8.8
CVE-2025-49739
Improper link resolution before file access ('link following') in Visual Studio allows an unauthorized attacker to elevate privileges over a network
8.8
CVE-2025-21178
Visual Studio Remote Code Execution Vulnerability
8.8
CVE-2025-21176
.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability