CVE-2023-38171
HIGHCVSS 7.5/10EPSS 69.49%
Last modified
CVE-2023-38171 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Microsoft QUIC Denial of Service Vulnerability. EPSS estimates a 69.49% chance of exploitation in the next 30 days.
Description
Microsoft QUIC Denial of Service Vulnerability
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .Net | >= 7.0.0, < 7.0.12 |
| Microsoft | Visual Studio 2022 | >= 17.2.0, < 17.2.20 |
| Microsoft | Visual Studio 2022 | >= 17.4.0, < 17.4.12 |
| Microsoft | Visual Studio 2022 | >= 17.6.0, < 17.6.8 |
| Microsoft | Visual Studio 2022 | >= 17.7.0, < 17.7.5 |
| Microsoft | Windows 11 22h2 | < 10.0.22621.2428 |
| Microsoft | Windows Server 2022 | All versions |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38171Patch, Vendor Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38171Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-38171?
Microsoft QUIC Denial of Service Vulnerability
How severe is CVE-2023-38171?
CVE-2023-38171 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 69.49% probability of exploitation in the next 30 days.
How do I fix CVE-2023-38171?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2023-38171?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST