High severity · published Mar 12, 2020
CVE-2020-0789
A denial of service vulnerability exists when the Visual Studio Extension Installer Service improperly handles hard links, aka 'Visual Studio Extension Installer Service Denial of…
7.1
CVSS
0.9%
EPSS
No
On KEV
Description
A denial of service vulnerability exists when the Visual Studio Extension Installer Service improperly handles hard links, aka 'Visual Studio Extension Installer Service Denial of Service Vulnerability'.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VS
Visual Studio 2019 · Microsoft
16.0 through 16.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-0789
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-0789
Patch
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0789
More from Visual Studio 2019
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-2024-28938
Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability
