Applied Cybernetics Group
Threat intel → detection pipeline
Friday, September 18, 2026
Data as of 13:09 UTC

Microsoft .NET Core and Visual Studio Denial-of-Service Vulnerability

Added to KEV
2023-08-09
Federal due date
2023-08-30
Vendor
Microsoft
Product
.NET Core and Visual Studio
EPSS
96.4th percentile (score 0.140, as of 2026-09-16)
NVD CVSS v3.1
7.5 (HIGH)
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2023-38180

CISA short description

Microsoft .NET Core and Visual Studio contain an unspecified vulnerability that allows for denial-of-service (DoS).

Required action

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

NVD description

.NET and Visual Studio Denial of Service Vulnerability

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.