How severe is CVE-2023-38180?

CVE-2023-38180 has a CVSS 3.1 base score of 7.5 (HIGH). EPSS estimates a 14.0% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2023-38180: .NET and Visual Studio Denial of Service

CISA Known Exploited Vulnerabilities

Microsoft .NET Core and Visual Studio Denial-of-Service Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2023-08-09

Remediation due

2023-08-30

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

CISA notes
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-38180; https://nvd.nist.gov/vuln/detail/CVE-2023-38180

Description

.NET and Visual Studio Denial of Service Vulnerability

Severity

CVSS 3.1 · CNA7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impactpartial

Affected Products

Vendor	Product	Affected versions
Microsoft	.NET 6.0	6.0.0 to <6.0.21
Microsoft	.NET 7.0	7.0.0 to <7.0.10
Microsoft	ASP.NET Core 2.1	2.0 to <2.1.40
Microsoft	Microsoft Visual Studio 2022 version 17.2	17.2.0 to <17.2.18
Microsoft	Microsoft Visual Studio 2022 version 17.4	17.4.0 to <17.4.10
Microsoft	Microsoft Visual Studio 2022 version 17.6	17.6.0 to <17.6.6

References

3 Links

Vendor advisories

.NET and Visual Studio Denial of Service Vulnerability

Other references

Record Details

Published

2023-08-08

Last updated

2026-08-10

Assigner (CNA)

microsoft

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.