CVE-2023-36799: .NET Core and Visual Studio Denial of Service Vulnerability

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-09-12 · updated 2026-06-17
Weakness: CWE-400

Description

.NET Core and Visual Studio Denial of Service Vulnerability

Affected products

Microsoft .NET: 6.0.0, 7.0.0
Microsoft Visual Studio 2022 version 17.14: from 17.2 before 17.2.19; from 17.4 before 17.4.11; from 17.6 before 17.6.7; from 17.7 before 17.7.4 — fixed in 17.2.19, 17.4.11, 17.6.7, 17.7.4
Microsoft .NET 6.0: from 6.0.0 before 6.0.24 — fixed in 6.0.24
Microsoft .NET 7.0: from 7.0.0 before 7.0.13 — fixed in 7.0.13
Microsoft Visual Studio 2022 version 17.2: from 17.2.0 before 17.2.21 — fixed in 17.2.21
Microsoft Visual Studio 2022 version 17.4: from 17.4.0 before 17.4.13 — fixed in 17.4.13
Microsoft Visual Studio 2022 version 17.6: from 17.6.0 before 17.6.9 — fixed in 17.6.9
Microsoft PowerShell 7.2: from 7.2.0 before 7.2.14 — fixed in 7.2.14
Microsoft PowerShell 7.3: from 7.3.0 before 7.2.14 — fixed in 7.2.14
Microsoft Visual Studio 2022 version 17.14: from 17.7.0 before 17.6.9 — fixed in 17.6.9

How to fix

Upgrade to a fixed version: Microsoft Visual Studio 2022 version 17.14 17.2.19, 17.4.11, 17.6.7, 17.7.4; Microsoft .NET 6.0 6.0.24; Microsoft .NET 7.0 7.0.13; Microsoft Visual Studio 2022 version 17.2 17.2.21; Microsoft Visual Studio 2022 version 17.4 17.4.13; Microsoft Visual Studio 2022 version 17.6 17.6.9; Microsoft PowerShell 7.2 7.2.14; Microsoft PowerShell 7.3 7.2.14; Microsoft Visual Studio 2022 version 17.14 17.6.9. Check the vendor advisory for mitigations.

References

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