Vulnerability · Published Dec 15, 2021 · Assigned by microsoft
CVE-2021-43240NTFS Set Short Name Elevation of Privilege Vulnerability
High 7.8
In plain English
A high-severity security flaw in Windows 10 Version 1909 from Microsoft. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.6%top 52.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
NTFS Set Short Name Elevation of Privilege Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1909 | 10.0.0 – before 10.0.18363.1977 |
| Microsoft | Windows 10 Version 21H1 | 10.0.0 – before 10.0.19043.1415 |
| Microsoft | Windows Server 2022 | 10.0.0 – before 10.0.20348.405 |
| Microsoft | Windows 10 Version 2004 | 10.0.0 – before 10.0.19041.1415 |
| Microsoft | Windows Server version 2004 | 10.0.0 – before 10.0.19041.1415 |
| Microsoft | Windows 10 Version 20H2 | 10.0.0 – before 10.0.19042.1415 |
| Microsoft | Windows Server version 20H2 | 10.0.0 – before 10.0.19042.1415 |
| Microsoft | Windows 11 version 21H2 | 10.0.0 – before 10.0.22000.376 |
| Microsoft | Windows 10 Version 21H2 | 10.0.0 – before 10.0.19044.1415 |