CVE-2021-30955

View on CVE.org

Published Aug 24, 2021 CVSS 3.1 · 7.0 High EPSS 4.8% KEV · Not listed

Description

A race condition was addressed with improved state handling. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges.

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

Apple

watchOS

affected

Version	Status	Constraints
`unspecified`	affected	< 8.3

Apple

iOS and iPadOS

affected

Version	Status	Constraints
`unspecified`	affected	< 15.2

Apple

macOS

affected

Version	Status	Constraints
`unspecified`	affected	< 12.1

Apple

macOS

affected

Version	Status	Constraints
`unspecified`	affected	< 15.2

Configuration 1 [-]

OR	cpe:2.3:o:apple:ipados::::::::
	cpe:2.3:o:apple:iphone_os::::::::
	cpe:2.3:o:apple:macos::::::::
	cpe:2.3:o:apple:tvos::::::::
	cpe:2.3:o:apple:watchos::::::::

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

No advisories available

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity High

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

Exploit prediction score: 4.8% (4.787% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://support.apple.com/en-us/HT212975
https://support.apple.com/en-us/HT212976
https://support.apple.com/en-us/HT212978
https://support.apple.com/en-us/HT212980

History

No history.

Subscriptions

Apple Ipados Iphone Os Macos Tvos Watchos

Weaknesses

CWE-362

Sources

CVE record Updated: Aug 3, 2024, 10:48 PM

Status: PUBLISHED
Assigner: apple
Published: Aug 24, 2021, 6:50 PM
Updated: Aug 3, 2024, 10:48 PM
Reserved: Apr 13, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:51 AM

Status: Modified
Published: Aug 24, 2021, 7:15 PM
Modified: Jun 17, 2026, 3:51 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "watchOS", "vendor": "Apple", "versions": [{"lessThan": "8.3", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "iOS and iPadOS", "vendor": "Apple", "versions": [{"lessThan": "15.2", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "12.1", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "15.2", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "A race condition was addressed with improved state handling. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges."}], "problemTypes": [{"descriptions": [{"description": "A malicious application may be able to execute arbitrary code with kernel privileges", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-12-23T20:01:11.000Z", "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "shortName": "apple"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://support.apple.com/en-us/HT212975"}, {"tags": ["x_refsource_MISC"], "url": "https://support.apple.com/en-us/HT212976"}, {"tags": ["x_refsource_MISC"], "url": "https://support.apple.com/en-us/HT212978"}, {"tags": ["x_refsource_MISC"], "url": "https://support.apple.com/en-us/HT212980"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "product-security@apple.com", "ID": "CVE-2021-30955", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "watchOS", "version": {"version_data": [{"version_affected": "<", "version_value": "8.3"}]}}, {"product_name": "iOS and iPadOS", "version": {"version_data": [{"version_affected": "<", "version_value": "15.2"}]}}, {"product_name": "macOS", "version": {"version_data": [{"version_affected": "<", "version_value": "12.1"}]}}, {"product_name": "macOS", "version": {"version_data": [{"version_affected": "<", "version_value": "15.2"}]}}]}, "vendor_name": "Apple"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A race condition was addressed with improved state handling. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "A malicious application may be able to execute arbitrary code with kernel privileges"}]}]}, "references": {"reference_data": [{"name": "https://support.apple.com/en-us/HT212975", "refsource": "MISC", "url": "https://support.apple.com/en-us/HT212975"}, {"name": "https://support.apple.com/en-us/HT212976", "refsource": "MISC", "url": "https://support.apple.com/en-us/HT212976"}, {"name": "https://support.apple.com/en-us/HT212978", "refsource": "MISC", "url": "https://support.apple.com/en-us/HT212978"}, {"name": "https://support.apple.com/en-us/HT212980", "refsource": "MISC", "url": "https://support.apple.com/en-us/HT212980"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T22:48:14.250Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://support.apple.com/en-us/HT212975"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://support.apple.com/en-us/HT212976"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://support.apple.com/en-us/HT212978"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://support.apple.com/en-us/HT212980"}]}]}, "cveMetadata": {"assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "assignerShortName": "apple", "cveId": "CVE-2021-30955", "datePublished": "2021-08-24T18:50:55.000Z", "dateReserved": "2021-04-13T00:00:00.000Z", "dateUpdated": "2024-08-03T22:48:14.250Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "watchOS", "vendor": "Apple", "versions": [{"lessThan": "8.3", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "iOS and iPadOS", "vendor": "Apple", "versions": [{"lessThan": "15.2", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "12.1", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "15.2", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "matchCriteriaId": "CCE4E546-A0DD-4E9E-A6B9-C19B04D77466", "versionEndExcluding": "15.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "matchCriteriaId": "7FB904C1-43D1-4583-8729-5D1B1746A54C", "versionEndExcluding": "15.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "88111C46-3A34-4814-B892-71EB5A9B6743", "versionEndExcluding": "12.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*", "matchCriteriaId": "16CAE2FB-FADC-4BF4-9115-D20D365051BF", "versionEndExcluding": "15.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*", "matchCriteriaId": "7A7245FB-6FBE-4C09-80F5-18504CA623B3", "versionEndExcluding": "8.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A race condition was addressed with improved state handling. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges."}, {"lang": "es", "value": "Se abord\u00f3 una condici\u00f3n de carrera con un manejo de estado mejorado. Este problema es corregido en macOS Monterey versi\u00f3n 12.1, watchOS versi\u00f3n 8.3, iOS versi\u00f3n 15.2 e iPadOS versi\u00f3n 15.2, tvOS versi\u00f3n 15.2. Una aplicaci\u00f3n maliciosa puede ejecutar c\u00f3digo arbitrario con privilegios de kernel"}], "id": "CVE-2021-30955", "lastModified": "2026-06-17T03:51:12.710", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.6, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:H/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-08-24T19:15:21.913", "references": [{"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/HT212975"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/HT212976"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/HT212978"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/HT212980"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://support.apple.com/en-us/HT212975"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://support.apple.com/en-us/HT212976"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://support.apple.com/en-us/HT212978"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://support.apple.com/en-us/HT212980"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}]}