CVE-2025-43355

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This issue is fixed in iOS 18.7 and iPadOS 18.7, iOS 26 and iPadOS 26, macOS Sequoia 15.7, macOS Sonoma 14.8, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. An app may be able to cause a denial-of-service."}, {"lang": "es", "value": "Un problema de confusi\u00f3n de tipos se abord\u00f3 con una gesti\u00f3n de memoria mejorada. Este problema se solucion\u00f3 en tvOS 26, watchOS 26, macOS Sonoma 14.8, iOS 26 y iPadOS 26, macOS Sequoia 15.7, visionOS 26, iOS 18.7 y iPadOS 18.7. Una aplicaci\u00f3n podr\u00eda causar una denegaci\u00f3n de servicio."}], "id": "CVE-2025-43355", "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": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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-2025-43355", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-09-16T17:23:46.048001Z", "version": "2.0.3"}}]}, "published": "2025-09-15T23:15:37.410", "references": [{"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125108"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125109"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/125110"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125111"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125112"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125114"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125115"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125116"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://seclists.org/fulldisclosure/2025/Sep/49"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://seclists.org/fulldisclosure/2025/Sep/53"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://seclists.org/fulldisclosure/2025/Sep/54"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://seclists.org/fulldisclosure/2025/Sep/55"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://seclists.org/fulldisclosure/2025/Sep/56"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://seclists.org/fulldisclosure/2025/Sep/57"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://seclists.org/fulldisclosure/2025/Sep/58"}], "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": "2026-04-27T23:57:30.533180+00:00", "value": {"mitigation_remediation": ["Install the latest iOS 18.7 or later update, or iPadOS 18.7 or later, to apply the memory\u2011handling fix", "Apply the updated macOS packages: Sequoia 15.7, Sonoma 14.8, or Tahoe 26, and repeat for any new releases", "Upgrade all tvOS, visionOS, and watchOS devices to version 26 or later to eliminate the type confusion path"], "summary": {"action": "Update OS", "impact": "Denial of Service via type confusion"}, "threat_synthesis": {"affected_systems": "Apple devices running iOS or iPadOS versions earlier than 18.7 or 26, macOS operating systems before Sequoia 15.7, Sonoma 14.8 or Tahoe 26, and all tvOS, visionOS, and watchOS versions before 26 are susceptible. All Apple operating systems enumerated in the affected\u2011cpe list are impacted if they have not received the corresponding update.", "description_and_impact": "A type confusion flaw, where objects are misinterpreted as another type, can cause memory handling errors during operation. An attacker that can supply or influence a misinterpreted object could trigger a crash or other unintended shutdown, resulting in denial of service. The weakness is classified as CWE\u2011843, which impacts the integrity of memory usage and can lead to application-level failures.", "risk_and_exploitability": "The CVSS score of 5.5 marks the flaw as medium severity, reflecting that its impact is limited to service availability rather than privilege escalation. EPSS is below 1\u202f%, indicating a low but non\u2011negligible likelihood of exploitation. The vulnerability is not catalogued in CISA\u2019s KEV list, so no active exploitation reports are publicly known. The attack vector is inferred to be local or app\u2011based, as the description references an app that can trigger the denial\u2011of\u2011service event. No elevated privileges or network-level access are required, so the risk is moderate but still warrants timely patching."}}}}, "created": "2025-09-17T10:05:18.349868+00:00", "title": "Type Confusion Denial\u2011of\u2011Service Vulnerability in Apple Operating Systems", "updated": "2026-04-28T00:00:18.133448+00:00", "vendors": ["apple", "apple$PRODUCT$ios", "apple$PRODUCT$ipados", "apple$PRODUCT$macos", "apple$PRODUCT$macos_sequoia", "apple$PRODUCT$macos_sonoma", "apple$PRODUCT$macos_tahoe", "apple$PRODUCT$tvos", "apple$PRODUCT$visionos", "apple$PRODUCT$watchos"]}