A permissions issue was addressed with improved path validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to modify protected system files.
cve CVE-2026-84609 1 source, 1 claim · Watch
NVD writes:
A permissions issue was addressed with improved path validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to modify protected system files. the claim
A permissions issue was addressed with improved path validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to modify protected system files. the claim
What it is to other things
| affects | apple/ipados NVD |
| affects | apple/iphone_os NVD |
| affects | apple/macos NVD |
| affects | apple/tvos NVD |
| affects | apple/visionos NVD |
| affects | apple/watchos NVD |
| made_by | apple NVD |
In words only, so not counted until a person confirms one:
| affects | apple/ios_and_ipadosNVD says “Apple · iOS and iPadOS” |
What each source says
| Property | Source | Said | Means here | ||||
|---|---|---|---|---|---|---|---|
| Cvss cvss | NVD | 9.8receipt
What the source handed over{
"cve": {
"affected": [
{
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"vendor": "Apple",
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{
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{
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"status": "affected",
"version": "0",
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} | — | ||||
| Product product | NVD | iOS and iPadOSreceipt
What the source handed over{
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"vendor": "Apple",
"versions": [
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"version": "0",
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},
{
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"lessThan": "27",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
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"vendor": "Apple",
"versions": [
{
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"version": "0",
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| Status status | NVD | Analyzedreceipt
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} | — | ||||
| Vendor vendor | NVD | Applereceipt
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A permissions issue was addressed with improved path validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to modify protected system files."
}
],
"id": "CVE-2026-84609",
"lastModified": "2026-09-18T12:52:55.113",
"metrics": {
"cvssMetricV31": [
{
"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
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{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"options": [
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{
"automatable": "yes"
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{
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}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-16T14:38:34.478035Z",
"version": "2.0.3"
}
}
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},
"published": "2026-09-14T21:17:36.133",
"references": [
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"tags": [
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"url": "https://support.apple.com/en-us/149034"
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},
{
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],
"sourceIdentifier": "product-security@apple.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-120"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
} | — |
vulnerability
| A permissions issue was addressed with improved path validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to modify protected system files. zetlyn/cve-nvd · 2026-09-14 | cvss 9.8 product iOS and iPadOS status Analyzed vendor Apple | source |