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CVE

CVE-2021-24092

Microsoft Defender Elevation of Privilege Vulnerability

Microsoft Defender Elevation of Privilege Vulnerability.

HIGH · CVSS 7.8 EPSS 0.00305
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules9 YARA rules0
⬡

Weakness Classification

CWE-269Improper Privilege Management
▤

Affected Products & Versions

4
microsoft windows defenderall versions
microsoft endpoint protectionall versions
microsoft security essentialsall versions
microsoft system center endpoint protectionall versions
◈

Sigma Hunt Rules

9
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighTaskkill Symantec Endpoint Protection
producthighTamper Windows Defender - PSClassic
producthighTamper Windows Defender Remove-MpPreference - ScriptBlockLogging
producthighTamper Windows Defender - ScriptBlockLogging
producthighPotential Windows Defender AV Bypass Via Dump64.EXE Rename
producthighSuspicious Uninstall of Windows Defender Feature via PowerShell
▣

Scoring & Timeline

7.8
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 NVD25 Feb 2021 · 11:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

1
msrcCVE-2021-24092Elevation 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-2021-24092PatchVendor Advisory
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