Unrated
iOS and iPadOS, macOS and 3 more products — security advisory
An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. An app may be able to cause unexpected system termination or corrupt kernel memory.
- Products
- iOS and iPadOS, macOS, tvOS, visionOS, watchOS
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-65398
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 21:39 UTC · Revision 1
Source evidence
An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. An app may be able to cause unexpected system termination or corrupt kernel memory.
cve:CVE-2026-65398
iOS and iPadOS
Fixed versions: Not specified
macOS
Fixed versions: Not specified
tvOS
Fixed versions: Not specified
visionOS
Fixed versions: Not specified
watchOS
Fixed versions: Not specified
Complete source record
{
"id": "1eb85a1cc4f6eca5d2659d14faa585163966ecabf575b1fd0f0e4977fcd0a266",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-65398",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2026-65398",
"summary": "An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. An app may be able to cause unexpected system termination or corrupt kernel memory.",
"evidence": "cve:CVE-2026-65398",
"products": [
{
"name": {
"value": "iOS and iPadOS",
"evidence": "/containers/cna/affected/0/product"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": []
},
{
"name": {
"value": "macOS",
"evidence": "/containers/cna/affected/1/product"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": []
},
{
"name": {
"value": "tvOS",
"evidence": "/containers/cna/affected/2/product"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": []
},
{
"name": {
"value": "visionOS",
"evidence": "/containers/cna/affected/3/product"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": []
},
{
"name": {
"value": "watchOS",
"evidence": "/containers/cna/affected/4/product"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CVE-2026-65398",
"aliases": [
"CVE-2026-65398"
],
"metrics": [],
"affected": [
{
"vendor": "Apple",
"product": "iOS and iPadOS",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "27",
"versionType": "custom"
}
]
},
{
"vendor": "Apple",
"product": "macOS",
"versions": [
{
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"version": "0",
"lessThan": "27",
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}
]
},
{
"vendor": "Apple",
"product": "tvOS",
"versions": [
{
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]
},
{
"vendor": "Apple",
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{
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}
]
},
{
"vendor": "Apple",
"product": "watchOS",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "27",
"versionType": "custom"
}
]
}
],
"modified": "2026-10-26T20:39:38.420Z",
"provider": "cve",
"references": [
"https://support.apple.com/en-us/149034",
"https://support.apple.com/en-us/149035",
"https://support.apple.com/en-us/149036",
"https://support.apple.com/en-us/149037",
"https://support.apple.com/en-us/149038"
],
"provider_metadata": {
"adp": [
{
"title": "CISA ADP Vulnrichment",
"metrics": [
{
"cvssV3_1": {
"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"
}
},
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2026-65398",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-09-16T00:00:00+00:00"
}
}
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"type": "CWE",
"cweId": "CWE-120",
"description": "CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"
}
]
}
],
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-09-17T03:57:17.932Z"
}
}
],
"cna": {
"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
"shortName": "apple",
"dateUpdated": "2026-10-26T20:39:38.420Z"
}
}
},
"related_cves": [
{
"value": "CVE-2026-65398",
"evidence": "/cveMetadata/cveId"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-cve",
"document_id": 344400,
"published_at": "2026-09-14T20:50:03.845+00:00"
}