What’s Vulnerable › Vulnerabilities

CVE-2023-33170: ASP.NET and Visual Studio Security Feature Bypass Vulnerability

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-07-11 · updated 2026-06-17
• Weakness: CWE-362

Description

ASP.NET and Visual Studio Security Feature Bypass Vulnerability

Affected products

• Fedoraproject Fedora: 37, 38
• Microsoft .NET: from 6.0.0 before 6.0.20; from 7.0.0 before 7.0.9 — fixed in 6.0.20, 7.0.9
• Microsoft Visual Studio 2022 version 17.14: from 17.0 before 17.0.23; from 17.2.0 before 17.2.17; from 17.4.0 before 17.4.9; from 17.6.0 before 17.6.5 — fixed in 17.0.23, 17.2.17, 17.4.9, 17.6.5
• Microsoft .NET 6.0: from 6.0.0 before 6.0.20 — fixed in 6.0.20
• Microsoft .NET 7.0: from 7.0.0 before 7.0.9 — fixed in 7.0.9
• Microsoft Visual Studio 2022 version 17.0: from 17.0.0 before 17.0.23 — fixed in 17.0.23
• Microsoft Visual Studio 2022 version 17.2: from 17.2.0 before 17.2.17 — fixed in 17.2.17
• Microsoft Visual Studio 2022 version 17.4: from 17.4.0 before 17.4.9 — fixed in 17.4.9
• Microsoft Visual Studio 2022 version 17.6: from 17.6.0 before 17.6.5 — fixed in 17.6.5

How to fix

Upgrade to a fixed version: Microsoft .NET 6.0.20, 7.0.9; Microsoft Visual Studio 2022 version 17.14 17.0.23, 17.2.17, 17.4.9, 17.6.5; Microsoft .NET 6.0 6.0.20; Microsoft .NET 7.0 7.0.9; Microsoft Visual Studio 2022 version 17.0 17.0.23; Microsoft Visual Studio 2022 version 17.2 17.2.17; Microsoft Visual Studio 2022 version 17.4 17.4.9; Microsoft Visual Studio 2022 version 17.6 17.6.5. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33170
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EVZVMMCCBBCSCPAW2CRQGOTKIHVFCMRO/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O5CFOR6ID2HP45E7ZOGQNX76FPIWP7XR/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TLWNIIA2I6YCYVCXYBPBRSZ3UH6KILTG/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Y3VJRGNYJXGPF5LXUG3NL45QPK2UU6PL/
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33170

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