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TI-2021-18750 Aliases CVE-2021-42319GHSA-4f33-87hw-r872

Visual Studio Elevation of Privilege Vulnerability

Priority LOW 26CWE-269Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from Microsoft.

Summary

Visual Studio Elevation of Privilege Vulnerability

Why it matters now

EPSS 0.00558 46th percentileScored 2026-11-07
Fix Fixed Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) (Microsoft): 15.9.41Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) (Microsoft): 16.11.6+2 more products

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)15.9.0 to before 15.9.4115.9.41Patch availableCNA
MicrosoftMicrosoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10)16.11.0 to before 16.11.616.11.6Patch availableCNA
MicrosoftMicrosoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)16.0.0 to before 16.7.2116.7.21Patch availableCNA
MicrosoftMicrosoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8)15.0.0 to before 16.9.1316.9.13Patch availableCNA
  • Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) VendorMicrosoft Affected 15.9.0 to before 15.9.41 Fixed in 15.9.41 Patch available CNA
  • Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) VendorMicrosoft Affected 16.11.0 to before 16.11.6 Fixed in 16.11.6 Patch available CNA
  • Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) VendorMicrosoft Affected 16.0.0 to before 16.7.21 Fixed in 16.7.21 Patch available CNA
  • Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8) VendorMicrosoft Affected 15.0.0 to before 16.9.13 Fixed in 16.9.13 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:*15.0 – 15.9VulnerableMicrosoft
cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*16.0 – 16.11VulnerableMicrosoft
  • cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:* Versions 15.0 – 15.9 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:* Versions 16.0 – 16.11 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) (Microsoft) Fixed in 15.9.41
  • Fix · CNA Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) (Microsoft) Fixed in 16.11.6
  • Fix · CNA Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) (Microsoft) Fixed in 16.7.21
  • Fix · CNA Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8) (Microsoft) Fixed in 16.9.13

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Elevation of Privilege
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)Fixed 15.9.41 · Security Update
Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10)Fixed 16.11.6 · Security Update
Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)Fixed 16.7.21 · Security Update
Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8)Fixed 16.9.13 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-42319
  2. 2026-10-03 Alias added: GHSA-4f33-87hw-r872

References

Patch 2

  • TI-2020-01112 A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and… KEVCVSS 3.1HIGH 7.8
  • TI-2022-16266 Visual Studio Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2021-15028 Visual Studio Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
  • TI-2019-01063 Improper input validation in Microsoft Visual Studio 2017 version 15.9 CVSS 3.1HIGH 8.8
  • TI-2019-01064 Improper input validation in Microsoft Visual Studio 2019 version 16.4 CVSS 3.1HIGH 8.8
  • TI-2019-01066 Improper input validation in Microsoft Visual Studio 2019 version 16.4 CVSS 3.1HIGH 8.8
See all 93 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences