CVE-2025-43447

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{"affected": [{"affectedData": [{"product": "iOS and iPadOS", "vendor": "Apple", "versions": [{"lessThan": "26.1", "status": "affected", "version": "0", "versionType": "custom"}]}, {"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "26.1", "status": "affected", "version": "0", "versionType": "custom"}]}, {"product": "visionOS", "vendor": "Apple", "versions": [{"lessThan": "26.1", "status": "affected", "version": "0", "versionType": "custom"}]}, {"product": "watchOS", "vendor": "Apple", "versions": [{"lessThan": "26.1", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "matchCriteriaId": "6D51AEDC-9086-4010-B3BF-C652D65D09C8", "versionEndExcluding": "26.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "matchCriteriaId": "3981A7BE-BC98-4C6F-AE38-D68839368925", "versionEndExcluding": "26.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*", "matchCriteriaId": "7DFD3616-65CA-4E5C-849C-3C20ACBCB610", "versionEndExcluding": "26.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*", "matchCriteriaId": "9F9D7F76-13FB-407C-94E5-221B93021568", "versionEndExcluding": "26.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The issue was addressed with improved memory handling. This issue is fixed in iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. An app may be able to cause unexpected system termination or corrupt kernel memory."}, {"lang": "es", "value": "El problema se abord\u00f3 con una gesti\u00f3n de memoria mejorada. Este problema est\u00e1 solucionado en watchOS 26.1, iOS 26.1, iPadOS 26.1 y visionOS 26.1. Una aplicaci\u00f3n podr\u00eda causar una terminaci\u00f3n inesperada del sistema o corromper la memoria del kernel."}], "id": "CVE-2025-43447", "lastModified": "2026-10-18T21:10:00.120", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-43447", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-11-04T16:44:44.926709Z", "version": "2.0.3"}}]}, "published": "2025-11-04T02:15:50.447", "references": [{"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125632"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/125634"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125638"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125639"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-119"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-27T23:02:17.246318+00:00", "value": {"mitigation_remediation": ["Upgrade each Apple device to iOS\u202f26.1, iPadOS\u202f26.1, macOS\u202fTahoe\u202f26.1, visionOS\u202f26.1, or watchOS\u202f26.1 to apply the memory\u2011handling fix.", "Limit installation to applications from the Apple App Store or those signed by Apple to reduce the risk of executing code that could trigger the vulnerability.", "Enable automatic software updates on all Apple devices so that future security patches are applied without manual intervention."], "summary": {"action": "Patch OS", "impact": "Kernel memory corruption or system termination"}, "threat_synthesis": {"affected_systems": "Apple devices running iOS, iPadOS, macOS (Tahoe), visionOS, and watchOS are potentially affected. The fix is delivered in version 26.1 for each platform, and no other specific affected releases are documented in the advisory.", "description_and_impact": "The vulnerability arises from improper memory handling within Apple\u2019s operating systems. It can enable an application to corrupt kernel memory or trigger unexpected system termination. The weakness is captured by CWE\u2011119 and CWE\u2011787, indicating buffer overflows and out\u2011of\u2011bounds writes.", "risk_and_exploitability": "The CVSS score of 5.5 represents a moderate impact. The EPSS score of less than 1% indicates only a very low probability of active exploitation at present. The vulnerability is not listed in the CISA KEV catalog. A local malicious or poorly behaved application could trigger the memory error, potentially causing a crash or kernel memory corruption. No evidence indicates privilege escalation beyond the described effects."}}}}, "created": "2025-11-04T16:33:07.834087+00:00", "title": "Improper Memory Handling Enables Kernel Corruption or Unexpected System Termination on Apple Operating Systems", "updated": "2026-04-27T23:15:06.043077+00:00", "vendors": ["apple", "apple$PRODUCT$ios", "apple$PRODUCT$ipados", "apple$PRODUCT$visionos", "apple$PRODUCT$watchos"]}