CVE-2021-43229
HIGHCVSS 7.8/10EPSS 1.76%
Last modified
CVE-2021-43229 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Windows NTFS Elevation of Privilege Vulnerability. EPSS estimates a 1.76% chance of exploitation in the next 30 days.
Description
Windows NTFS Elevation of Privilege Vulnerability
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Microsoft | Windows 10 | All versions | — |
| Microsoft | Windows 10 | 20h2 | — |
| Microsoft | Windows 10 | 21h1 | — |
| Microsoft | Windows 10 | 1607 | — |
| Microsoft | Windows 10 | 1809 | — |
| Microsoft | Windows 10 | 1909 | — |
| Microsoft | Windows 10 | 2004 | — |
| Microsoft | Windows 11 | All versions | — |
| Microsoft | Windows 7 | All versions | Sp1 |
| Microsoft | Windows 8.1 | All versions | — |
| Microsoft | Windows Rt 8.1 | All versions | — |
| Microsoft | Windows Server | 20h2 | — |
| Microsoft | Windows Server | 2022 | — |
| Microsoft | Windows Server 2008 | r2 | Sp1 |
| Microsoft | Windows Server 2012 | All versions | — |
| Microsoft | Windows Server 2012 | r2 | — |
| Microsoft | Windows Server 2016 | All versions | — |
| Microsoft | Windows Server 2016 | 2004 | — |
| Microsoft | Windows Server 2019 | All versions | — |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43229Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43229Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-43229?
Windows NTFS Elevation of Privilege Vulnerability
How severe is CVE-2021-43229?
CVE-2021-43229 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.76% probability of exploitation in the next 30 days.
How do I fix CVE-2021-43229?
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.
Related CVEs from 2021
- CVE-2021-43223Windows Remote Access Connection Manager Elevation of Privil…7.8
- CVE-2021-43224Windows Common Log File System Driver Information Disclosure…5.5
- CVE-2021-43225Bot Framework SDK Remote Code Execution Vulnerability9.8
- CVE-2021-43226Windows Common Log File System Driver Elevation of Privilege…7.8
- CVE-2021-43227Storage Spaces Controller Information Disclosure Vulnerabili…5.5
- CVE-2021-43228SymCrypt Denial of Service Vulnerability7.5
- CVE-2021-4323Insufficient validation of untrusted input in Extensions in …6.5
- CVE-2021-43230Windows NTFS Elevation of Privilege Vulnerability7.8
- CVE-2021-43231Windows NTFS Elevation of Privilege Vulnerability7.8
- CVE-2021-43232Windows Event Tracing Remote Code Execution Vulnerability7.8
- CVE-2021-43233Remote Desktop Client Remote Code Execution Vulnerability7.5
- CVE-2021-43234Windows Fax Service Remote Code Execution Vulnerability7.8
Are you affected by CVE-2021-43229?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST