CVE-2021-31204
HIGHCVSS 7.3/10EPSS 1.40%
Last modified
CVE-2021-31204 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. .NET and Visual Studio Elevation of Privilege Vulnerability. EPSS estimates a 1.40% chance of exploitation in the next 30 days.
Description
.NET and Visual Studio Elevation of Privilege Vulnerability
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .Net | >= 5.0, <= 5.0.5 |
| Microsoft | .Net Core | >= 3.1, <= 3.1.14 |
| Microsoft | Visual Studio 2019 | >= 16.0, < 16.4.22 |
| Microsoft | Visual Studio 2019 | >= 16.5.0, < 16.7.15 |
| Microsoft | Visual Studio 2019 | >= 16.8.0, < 16.9.5 |
| Microsoft | Visual Studio 2019 | 8.9 |
| Fedoraproject | Fedora | 32 |
| Fedoraproject | Fedora | 33 |
| Fedoraproject | Fedora | 34 |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31204Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31204Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-31204?
.NET and Visual Studio Elevation of Privilege Vulnerability
How severe is CVE-2021-31204?
CVE-2021-31204 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 1.40% probability of exploitation in the next 30 days.
How do I fix CVE-2021-31204?
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-2021-31204?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST