CVE-2021-40476 — HIGH (7.5)

Vulnerability Description

Windows AppContainer Elevation Of Privilege Vulnerability

CVSS Score

7.5

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Windows 10	-
Microsoft	Windows 11	-
Microsoft	Windows 8.1	-
Microsoft	Windows Rt 8.1	-
Microsoft	Windows Server 2012	-
Microsoft	Windows Server 2016	-
Microsoft	Windows Server 2019	-
Microsoft	Windows Server 2022	-

Related Weaknesses (CWE)

CWE-522

References

http://packetstormsecurity.com/files/164942/Microsoft-Windows-WSAQuerySocketSecuThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4047PatchVendor Advisory
http://packetstormsecurity.com/files/164942/Microsoft-Windows-WSAQuerySocketSecuThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4047PatchVendor Advisory

FAQ

What is CVE-2021-40476?

CVE-2021-40476 is a vulnerability with a CVSS score of 7.5 (HIGH). Windows AppContainer Elevation Of Privilege Vulnerability

How severe is CVE-2021-40476?

CVE-2021-40476 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-40476?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10, Microsoft Windows 11, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2012.