CISA KEV · Known exploitedHigh

CVE-2023-38180

Microsoft .NET Core and Visual Studio

CVE-2023-38180 affects Microsoft .NET Core and Visual Studio. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

CVSS: 7.5
EPSS: 14.7%
CISA KEV: Listed
Published: 2023.08.09

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability14.7%

Technical severityCVSS 7.5

Vulnerability overview

CVE-2023-38180 affects Microsoft .NET Core and Visual Studio. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

Affected product and versions

Product: Microsoft .NET Core and Visual Studio
Affected versions: 2.0, 6.0.0, 7.0.0, 17.2.0, 17.4.0, 17.6.0, >= 6.0.0 < 6.0.21, >= 7.0.0 < 7.0.10, >= 2.1 < 2.1.40, >= 17.2.0 < 17.2.18, >= 17.4.0 < 17.4.10, >= 17.6.0 < 17.6.6, 37, 38
Fixed versions: 6.0.21, 7.0.10, 2.1.40, 17.2.18, 17.4.10, 17.6.6

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Due date: 2023.08.30

1
Identify
Confirm that Microsoft .NET Core and Visual Studio 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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE: CWE-400
KEV added: 2023.08.09
Ransomware use: 미확인