Home/CVE/Windows AppContainer Elevation Of Privilege Vulnerability
CVE

CVE-2021-40476

Windows AppContainer Elevation Of Privilege Vulnerability

Windows AppContainer Elevation Of Privilege Vulnerability.

HIGH · CVSS 7.5 EPSS 0.00441
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  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-522Insufficiently Protected Credentials
▤

Affected Products & Versions

8
microsoft windows 10all versions
microsoft windows 11all versions
microsoft windows 8.1all versions
microsoft windows rt 8.1all versions
microsoft windows server 2012all versions
microsoft windows server 2016all versions
microsoft windows server 2019all versions
microsoft windows server 2022all versions
⚠

Public Exploits & PoCs

1
pocpacketstormsecurity.com · Microsoft-Windows-WSAQuerySocketSecurity-AppContainer-Pri...packetstormsecurity.com
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Scoring & Timeline

7.5
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Oct 2021 · 01:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
⚑

Vendor Advisories

1
msrcCVE-2021-40476Elevation of Privilege
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40476PatchVendor Advisory
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