CVE-2023-28260: .NET DLL Hijacking Remote Code Execution Vulnerability

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-04-11 · updated 2026-06-17

Description

.NET DLL Hijacking Remote Code Execution Vulnerability

Affected products

Microsoft .NET: from 6.0.0 before 6.0.16; from 7.0.0 before 7.0.5 — fixed in 6.0.16, 7.0.5
Microsoft Visual Studio 2022 version 17.14: from 17.0 before 17.0.21; from 17.2 before 17.2.15; from 17.4 before 17.4.7; from 17.5 before 17.5.4 — fixed in 17.0.21, 17.2.15, 17.4.7, 17.5.4
Microsoft .NET 6.0: from 6.0.0 before 6.0.16 — fixed in 6.0.16
Microsoft .NET 7.0: from 7.0.0 before 7.0.5 — fixed in 7.0.5
Microsoft Visual Studio 2022 version 17.0: from 17.0.0 before 17.0.21 — fixed in 17.0.21
Microsoft Visual Studio 2022 version 17.2: from 17.2.0 before 17.2.15 — fixed in 17.2.15
Microsoft Visual Studio 2022 version 17.4: from 17.4.0 before 17.4.7 — fixed in 17.4.7
Microsoft Visual Studio 2022 version 17.5: from 17.5.0 before 17.5.4 — fixed in 17.5.4
Microsoft PowerShell 7.2: from 7.2.0 before 7.2.11 — fixed in 7.2.11
Microsoft PowerShell 7.3: from 7.3.0 before 7.3.4 — fixed in 7.3.4

How to fix

Upgrade to a fixed version: Microsoft .NET 6.0.16, 7.0.5; Microsoft Visual Studio 2022 version 17.14 17.0.21, 17.2.15, 17.4.7, 17.5.4; Microsoft .NET 6.0 6.0.16; Microsoft .NET 7.0 7.0.5; Microsoft Visual Studio 2022 version 17.0 17.0.21; Microsoft Visual Studio 2022 version 17.2 17.2.15; Microsoft Visual Studio 2022 version 17.4 17.4.7; Microsoft Visual Studio 2022 version 17.5 17.5.4; Microsoft PowerShell 7.2 7.2.11; Microsoft PowerShell 7.3 7.3.4. Check the vendor advisory for mitigations.

References

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