CVE-2021-34486

Windows Event Tracing Elevation of Privilege Vulnerability

CVSS v3 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34486	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10_1809::::::::
	cpe:2.3:o:microsoft:windows_10_1909::::::::
	cpe:2.3:o:microsoft:windows_10_2004::::::::
	cpe:2.3:o:microsoft:windows_10_20h2::::::::
	cpe:2.3:o:microsoft:windows_10_21h1::::::::
	cpe:2.3:o:microsoft:windows_server_2004::::::::
	cpe:2.3:o:microsoft:windows_server_2019::::::::
	cpe:2.3:o:microsoft:windows_server_20h2::::::::

History

No history.

Information

Published : 2021-08-12 18:15

Updated : 2024-07-16 17:50

NVD link : CVE-2021-34486

Mitre link : CVE-2021-34486

CVE.ORG link : CVE-2021-34486

JSON object : View

Products Affected

microsoft

windows_10_20h2
windows_10_1909
windows_10_21h1
windows_server_2004
windows_server_20h2
windows_server_2019
windows_10_2004
windows_10_1809

CWE

CWE-416

Use After Free

{"id": "CVE-2021-34486", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.6, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2021-08-12T18:15:09.190", "references": [{"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34486", "tags": ["Patch", "Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "Windows Event Tracing Elevation of Privilege Vulnerability"}, {"lang": "es", "value": "Una Vulnerabilidad de Elevaci\u00f3n de Privilegios en Windows Event Tracing. Este CVE ID es diferente de CVE-2021-26425, CVE-2021-34487"}], "lastModified": "2024-07-16T17:50:44.237", "cisaActionDue": "2022-04-18", "cisaExploitAdd": "2022-03-28", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F8D40D82-1D88-4CF1-B961-F9F28426C56B", "versionEndExcluding": "10.0.17763.2114"}, {"criteria": "cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3DD2BDE6-67C6-48E2-BED0-12E4CC7EE6BC", "versionEndExcluding": "10.0.18363.1734"}, {"criteria": "cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "70336A6A-DE45-4604-BE81-10DA4DF12D3F", "versionEndExcluding": "10.0.19041.1165"}, {"criteria": "cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7AB7321A-1F89-48B3-8E5A-94791AB2BC86", "versionEndExcluding": "10.0.19042.1165"}, {"criteria": "cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2A860F2B-0533-46F7-879E-B932E4E44F0D", "versionEndExcluding": "10.0.19043.1165"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C90BEC5F-E0A8-43C5-BB0D-251D19BFD66B", "versionEndExcluding": "10.0.19041.1165"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "61219C24-A1AE-427F-BBF8-A984BCB1CA6F", "versionEndExcluding": "10.0.17763.2114"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "45A85E4C-6C7A-4B72-832D-AC12A78565C3", "versionEndExcluding": "10.0.19042.1165"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Microsoft Windows Event Tracing Privilege Escalation Vulnerability"}