CVE-2026-43668
Full vulnerability record from the local CVENow database.
Description
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.
Severity
HIGH
CVSS score
7.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-05-11 21:19:02.023000
Last modified
2026-10-26 00:10:00.150000
View original CVE JSON
{
"id": "CVE-2026-43668",
"sourceIdentifier": "[email protected]",
"published": "2026-05-11T21:19:02.023",
"lastModified": "2026-10-26T00:10:00.150",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory."
},
{
"lang": "es",
"value": "Un problema de use after free se abordó con una gestión de memoria mejorada. Este problema está solucionado en iOS 18.7.9 y iPadOS 18.7.9, iOS 26.5 y iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Un atacante remoto podría causar una terminación inesperada del sistema o corromper la memoria del kernel."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Apple",
"product": "iOS and iPadOS",
"versions": [
{
"version": "0",
"lessThan": "18.7.9",
"versionType": "custom",
"status": "affected"
},
{
"version": "0",
"lessThan": "26.5",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Apple",
"product": "macOS",
"versions": [
{
"version": "0",
"lessThan": "14.8.7",
"versionType": "custom",
"status": "affected"
},
{
"version": "0",
"lessThan": "15.7.7",
"versionType": "custom",
"status": "affected"
},
{
"version": "0",
"lessThan": "26.5",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Apple",
"product": "tvOS",
"versions": [
{
"version": "0",
"lessThan": "26.5",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Apple",
"product": "visionOS",
"versions": [
{
"version": "0",
"lessThan": "26.5",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Apple",
"product": "watchOS",
"versions": [
{
"version": "0",
"lessThan": "26.5",
"versionType": "custom",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-05-12T18:06:44.920541Z",
"id": "CVE-2026-43668",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
"versionEndExcluding": "18.7.9",
"matchCriteriaId": "F3968B76-E6DE-416D-A0FB-E4833FFAAE0F"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
"versionStartIncluding": "26.0",
"versionEndExcluding": "26.5",
"matchCriteriaId": "20644D7E-2AB6-48CA-AED4-C474A9867986"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
"versionEndExcluding": "18.7.9",
"matchCriteriaId": "B6431EAF-B395-4C19-9AB6-A2F45991C897"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
"versionStartIncluding": "26.0",
"versionEndExcluding": "26.5",
"matchCriteriaId": "1BE54A3B-D667-43BA-AB71-BCF8438054E0"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
"versionStartIncluding": "14.0",
"versionEndExcluding": "14.8.7",
"matchCriteriaId": "DD9E7FAE-30DA-4B2B-A63A-6DFEA7A29933"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
"versionStartIncluding": "15.0",
"versionEndExcluding": "15.7.7",
"matchCriteriaId": "2984C440-3DC2-413A-B5FA-1FAB21078DB8"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
"versionStartIncluding": "26.0",
"versionEndExcluding": "26.5",
"matchCriteriaId": "6CB91417-90A8-4A9B-A1D0-1D94B80EF837"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*",
"versionEndExcluding": "26.5",
"matchCriteriaId": "176C47FD-FA25-437B-9061-A81CAA367AEF"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*",
"versionEndExcluding": "26.5",
"matchCriteriaId": "C8F45D80-0DF8-444E-9AF1-703A1075F046"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*",
"versionEndExcluding": "26.5",
"matchCriteriaId": "057B244F-5485-4108-8E23-FE15F5256EE7"
}
]
}
]
}
],
"references": [
{
"url": "https://support.apple.com/en-us/127110",
"source": "[email protected]",
"tags": [
"Release Notes",
"Vendor Advisory"
]
},
{
"url": "https://support.apple.com/en-us/127111",
"source": "[email protected]",
"tags": [
"Release Notes",
"Vendor Advisory"
]
},
{
"url": "https://support.apple.com/en-us/127115",
"source": "[email protected]",
"tags": [
"Release Notes",
"Vendor Advisory"
]
},
{
"url": "https://support.apple.com/en-us/127116",
"source": "[email protected]",
"tags": [
"Release Notes",
"Vendor Advisory"
]
},
{
"url": "https://support.apple.com/en-us/127117",
"source": "[email protected]",
"tags": [
"Release Notes",
"Vendor Advisory"
]
},
{
"url": "https://support.apple.com/en-us/127118",
"source": "[email protected]",
"tags": [
"Release Notes",
"Vendor Advisory"
]
},
{
"url": "https://support.apple.com/en-us/127119",
"source": "[email protected]",
"tags": [
"Release Notes",
"Vendor Advisory"
]
},
{
"url": "https://support.apple.com/en-us/127120",
"source": "[email protected]",
"tags": [
"Release Notes",
"Vendor Advisory"
]
}
]
}