CVE-2025-43283

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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": "An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Tahoe 26. An app may be able to cause unexpected system termination."}], "id": "CVE-2025-43283", "lastModified": "2026-06-17T09:23:39.720", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 3.3, "baseSeverity": "LOW", "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:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-43283", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-09-16T13:32:26.305101Z", "version": "2.0.3"}}]}, "published": "2025-09-15T23:15:31.843", "references": [{"source": "product-security@apple.com", "tags": ["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-125"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-28T10:40:42.818234+00:00", "value": {"mitigation_remediation": ["Upgrade the machine to macOS Tahoe\u00a026 or later to receive the bounds\u2011checking fix.", "Reboot the system after the upgrade to ensure the new kernel routines are active.", "If an immediate upgrade is not possible, identify applications capable of triggering the out\u2011of\u2011bounds read and quarantine or uninstall them to prevent crashes.", "Continuously monitor for system crashes and apply future macOS updates as they become available."], "summary": {"action": "Assess Impact", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "Apple macOS releases older than macOS\u00a0Tahoe\u00a026 are affected. The vulnerability is resolved in macOS\u00a0Tahoe\u00a026 and later, so any macOS version before that remains vulnerable.", "description_and_impact": "An out\u2011of\u2011bounds read occurs when an application accesses memory beyond its allowed bounds, allowing an attacker to trigger a crash. The flaw is mitigated in macOS Tahoe\u00a026 through improved bounds checking, but on older systems it can cause unexpected system termination. The weakness is CWE\u2011125 and does not provide remote code execution; its primary impact is denial of service as the operating system or running services may become unavailable.", "risk_and_exploitability": "The CVSS score of 3.3 indicates low severity, and the EPSS score of <1% suggests a very low probability of exploitation. The vulnerability is not listed in the CISA KEV catalog. Since the flaw requires triggering an out\u2011of\u2011bounds read inside the operating system, it is most likely exploitable by a local or privileged application, meaning an attacker needs local execution or the ability to run a malicious app on the target machine. If such code runs, the resulting crash could deny service to legitimate users."}}}}, "created": "2025-09-17T10:05:17.345395+00:00", "title": "Out\u2011of\u2011Bounds Read Causing System Termination in Apple macOS", "updated": "2026-04-28T10:45:29.425892+00:00", "vendors": ["apple", "apple$PRODUCT$macos"]}