CVE-2021-42311

Microsoft Defender for IoT Remote Code Execution Vulnerability

View on CVE.org

Published Dec 15, 2021 CVSS 3.1 · 10 Critical EPSS 4.4% KEV · Not listed

Description

Microsoft Defender for IoT Remote Code Execution Vulnerability

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Microsoft

Microsoft Defender for IoT

affected

Version	Status	Constraints
`22.0.0`	affected	< 10.5.2

Configuration 1 [-]

cpe:2.3:a:microsoft:defender_for_iot:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-29286	Microsoft Defender for IoT Remote Code Execution Vulnerability

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

Exploit prediction score: 4.4% (4.423% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42311
https://www.zerodayinitiative.com/advisories/ZDI-21-1556/

History

No history.

Subscriptions

Microsoft Defender For Iot

Weaknesses

CWE-89

Sources

CVE record Updated: Aug 4, 2024, 3:30 AM

Status: PUBLISHED
Assigner: microsoft
Published: Dec 15, 2021, 2:14 PM
Updated: Aug 4, 2024, 3:30 AM
Reserved: Oct 12, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:09 AM

Status: Modified
Published: Dec 15, 2021, 3:15 PM
Modified: Jun 17, 2026, 4:09 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:microsoft:defender_for_iot:-:*:*:*:*:*:*:*"], "platforms": ["Unknown"], "product": "Microsoft Defender for IoT", "vendor": "Microsoft", "versions": [{"lessThan": "10.5.2", "status": "affected", "version": "22.0.0", "versionType": "custom"}]}], "source": "secure@microsoft.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:defender_for_iot:*:*:*:*:*:*:*:*", "matchCriteriaId": "76438E52-A164-43FE-AABA-C0ABBE6D2C79", "versionEndExcluding": "10.5.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Microsoft Defender for IoT Remote Code Execution Vulnerability"}, {"lang": "es", "value": "Una vulnerabilidad de Ejecuci\u00f3n de C\u00f3digo Remota de Microsoft Defender de IoT. Este ID de CVE es diferente de CVE-2021-41365, CVE-2021-42310, CVE-2021-42313, CVE-2021-42314, CVE-2021-42315, CVE-2021-43882, CVE-2021-43889"}], "id": "CVE-2021-42311", "lastModified": "2026-06-17T04:09:37.717", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 10.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 6.0, "source": "secure@microsoft.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Secondary"}]}, "published": "2021-12-15T15:15:09.060", "references": [{"source": "secure@microsoft.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42311"}, {"source": "secure@microsoft.com", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1556/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42311"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1556/"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-89"}], "source": "nvd@nist.gov", "type": "Primary"}]}