ReviewHigh

CVE-2021-34477

Microsoft .NET Education Bundle SDK Install Tool, .NET Install Tool for Extension Authors, .net education bundle sdk install tool

CVE-2021-34477 affects Microsoft .NET Education Bundle SDK Install Tool, .NET Install Tool for Extension Authors, .net education bundle sdk install tool. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

CVSS: 7.8
EPSS: 0.56%
CISA KEV: Not listed
Published: 2021.07.15

PRIORITY ASSESSMENT

Review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.56%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Microsoft .NET Education Bundle SDK Install Tool, .NET Install Tool for Extension Authors, .net education bundle sdk install tool
Affected versions: >= 0.0.0 < 1.2.0, >= 1.0.0 < 0.7.0, >= 0.6.0 < 0.7.0, >= 1.1.0 < 1.2.0
Fixed versions: 0.7.0, 1.2.0

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Microsoft .NET Education Bundle SDK Install Tool, .NET Install Tool for Extension Authors, .net education bundle sdk install tool and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-269