CVE-2021-26701
HIGHCVSS 8.1/10EPSS 30.31%
Last modified
CVE-2021-26701 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. .NET Core Remote Code Execution Vulnerability. EPSS estimates a 30.31% chance of exploitation in the next 30 days.
Description
.NET Core Remote Code Execution Vulnerability
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .Net | >= 5.0, < 5.0.4 |
| Microsoft | .Net Core | >= 2.1, < 2.1.28 |
| Microsoft | .Net Core | >= 3.1, < 3.1.15 |
| Microsoft | Powershell Core | 7.0 |
| Microsoft | Powershell Core | 7.1 |
| Microsoft | Visual Studio 2019 | >= 16.0, <= 16.9 |
| Microsoft | Visual Studio 2019 | All versions |
| Fedoraproject | Fedora | 32 |
| Fedoraproject | Fedora | 33 |
| Fedoraproject | Fedora | 34 |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26701Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26701Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-26701?
.NET Core Remote Code Execution Vulnerability
How severe is CVE-2021-26701?
CVE-2021-26701 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 30.31% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26701?
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-2021-26701?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST