FKIE_CVE-2021-30719
Vulnerability from fkie_nvd - Published: 2021-09-08 15:15 - Updated: 2026-06-17 03:50
Severity
Summary
A local user may be able to cause unexpected system termination or read kernel memory. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina. An out-of-bounds read issue was addressed by removing the vulnerable code.
References
| URL | Tags | ||
|---|---|---|---|
| product-security@apple.com | https://support.apple.com/en-us/HT212529 | Release Notes, Vendor Advisory | |
| product-security@apple.com | https://support.apple.com/en-us/HT212530 | Release Notes, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://support.apple.com/en-us/HT212529 | Release Notes, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://support.apple.com/en-us/HT212530 | Release Notes, Vendor Advisory |
{
"affected": [
{
"affectedData": [
{
"product": "macOS",
"vendor": "Apple",
"versions": [
{
"lessThan": "11.4",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "macOS",
"vendor": "Apple",
"versions": [
{
"lessThan": "2021",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"source": "product-security@apple.com"
}
],
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A local user may be able to cause unexpected system termination or read kernel memory. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina. An out-of-bounds read issue was addressed by removing the vulnerable code."
},
{
"lang": "es",
"value": "Un usuario local puede causar la terminaci\u00f3n inesperada del sistema o leer la memoria del kernel. Este problema es corregido en macOS Big Sur versi\u00f3n 11.4, Security Update 2021-003 Catalina. Se abord\u00f3 un problema de lectura fuera de l\u00edmites al eliminar el c\u00f3digo vulnerable"
}
],
"id": "CVE-2021-30719",
"lastModified": "2026-06-17T03:50:45.457",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
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"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 6.6,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:C/I:N/A:C",
"version": "2.0"
},
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"impactScore": 9.2,
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"source": "nvd@nist.gov",
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}
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"cvssMetricV31": [
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"attackVector": "LOCAL",
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"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"published": "2021-09-08T15:15:16.183",
"references": [
{
"source": "product-security@apple.com",
"tags": [
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],
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"sourceIdentifier": "product-security@apple.com",
"vulnStatus": "Modified",
"weaknesses": [
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"description": [
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"value": "CWE-125"
}
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"source": "nvd@nist.gov",
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}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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