Safari, iOS and iPadOS and 4 more products — security advisory
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.
- Products
- Safari, iOS and iPadOS, macOS, tvOS, visionOS, watchOS
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-65391
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 20:59 UTC · Revision 1
Source evidence
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.
cve:CVE-2026-65391
Safari
Fixed versions: Not specified
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": "842e337748c363f1468f84a290f0519e9aaa6b57b4848ed3cbab9bbe7958be28",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-65391",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2026-65391",
"summary": "An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.",
"evidence": "cve:CVE-2026-65391",
"products": [
{
"name": {
"value": "Safari",
"evidence": "/containers/cna/affected/0/product"
},
"prerequisites": [],
"fixed_versions": [],
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},
{
"name": {
"value": "iOS and iPadOS",
"evidence": "/containers/cna/affected/1/product"
},
"prerequisites": [],
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"affected_versions": []
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{
"name": {
"value": "macOS",
"evidence": "/containers/cna/affected/2/product"
},
"prerequisites": [],
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"affected_versions": []
},
{
"name": {
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"evidence": "/containers/cna/affected/3/product"
},
"prerequisites": [],
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{
"name": {
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"evidence": "/containers/cna/affected/4/product"
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{
"name": {
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}
],
"severity": "unknown",
"structured": {
"id": "CVE-2026-65391",
"aliases": [
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],
"metrics": [],
"affected": [
{
"vendor": "Apple",
"product": "Safari",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "26.6.1",
"versionType": "custom"
}
]
},
{
"vendor": "Apple",
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{
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{
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},
{
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{
"vendor": "Apple",
"product": "watchOS",
"versions": [
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"status": "affected",
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}
],
"modified": "2026-10-26T20:34:34.970Z",
"provider": "cve",
"references": [
"https://support.apple.com/en-us/148281",
"https://support.apple.com/en-us/148282",
"https://support.apple.com/en-us/148286",
"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": 8.8,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
}
},
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2026-65391",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
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],
"version": "2.0.3",
"timestamp": "2026-09-15T00:00:00+00:00"
}
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}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"type": "CWE",
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound"
}
]
}
],
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-09-16T03:56:40.310Z"
}
}
],
"cna": {
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"shortName": "apple",
"dateUpdated": "2026-10-26T20:34:34.970Z"
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}
},
"related_cves": [
{
"value": "CVE-2026-65391",
"evidence": "/cveMetadata/cveId"
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],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-cve",
"document_id": 341998,
"published_at": "2026-09-14T20:47:50.057+00:00"
}