CVE-2025-43297

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{"affected": [{"affectedData": [{"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "26", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "39AFEC84-CF6E-4859-8B5A-C5CF3F838A94", "versionEndExcluding": "26.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A type confusion issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26. An app may be able to cause a denial-of-service."}, {"lang": "es", "value": "Se abord\u00f3 un problema de confusi\u00f3n de tipos con un manejo de memoria mejorado. Este problema est\u00e1 corregido en macOS Tahoe 26. Una aplicaci\u00f3n podr\u00eda causar una denegaci\u00f3n de servicio."}], "id": "CVE-2025-43297", "lastModified": "2026-09-30T23:10:00.237", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-43297", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-09-16T16:07:22.037789Z", "version": "2.0.3"}}]}, "published": "2025-09-15T23:15:32.797", "references": [{"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125110"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://seclists.org/fulldisclosure/2025/Sep/53"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-843"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-28T00:17:58.052609+00:00", "value": {"mitigation_remediation": ["Upgrade to macOS Tahoe\u202f26 or later releases", "Ensure that all macOS security updates are installed", "Avoid running untrusted applications until the update is applied"], "summary": {"action": "Apply Update", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "Apple's macOS operating system is impacted, specifically versions prior to macOS Tahoe\u202f26. Users running earlier releases may be subject to the denial\u2011of\u2011service condition when dealing with obfuscated or malformed input from applications.", "description_and_impact": "The vulnerability is a type confusion bug that can lead to a denial\u2011of\u2011service, allowing an application to cause the system to become unresponsive or crash. This weakness arises from improper memory handling corrected in macOS Tahoe 26. The flaw can be triggered when an application deals with incorrectly typed objects, potentially leading to application termination or system instability.", "risk_and_exploitability": "The CVSS score of 6.2 indicates moderate severity, and the EPSS score below 1% suggests low likelihood of widespread exploitation at present. The flaw is not in the CISA KEV catalog. Attack vectors are inferred to be local; an app that can execute type confusion may trigger the denial\u2011of\u2011service. Protection and timely patching reduce the risk."}}}}, "created": "2025-09-17T10:06:35.887227+00:00", "title": "Type Confusion Causing Denial of Service on macOS Tahoe\u202f26", "updated": "2026-04-28T00:30:15.454267+00:00", "vendors": ["apple", "apple$PRODUCT$macos"]}