CVE-2021-34477
Visual Studio Code .NET Runtime Elevation of Privilege Vulnerability
Visual Studio Code .NET Runtime Elevation of Privilege Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Visual Studio Code .NET Runtime Elevation of Privilege Vulnerability
Visual Studio Code .NET Runtime Elevation of Privilege Vulnerability
- Record
CVE-2021-34477- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-21132
Visual Studio Code .NET Runtime Elevation of Privilege Vulnerability
- Record
EUVD-2021-21132- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
NVD
Visual Studio Code .NET Runtime Elevation of Privilege Vulnerability
- Record
CVE-2021-34477- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.6 Medium
AV:L/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-269
- Updated
- 2026-11-02
OSV
Visual Studio Code .NET Runtime Elevation of Privilege Vulnerability
- Record
CVE-2021-34477- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-34477 is a high vulnerability (CVSS 7.8) in Microsoft .net Education Bundle Sdk Install Tool, published July 14, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.57%, the 47th percentile. No source names a fixed version.