CVE-2025-43470

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{"affected": [{"affectedData": [{"product": "macOS", "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:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "081B6CCE-FFA4-409C-9353-15014F3AF436", "versionEndExcluding": "26.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Tahoe 26.1. A standard user may be able to view files made from a disk image belonging to an administrator."}, {"lang": "es", "value": "Se abord\u00f3 un problema de permisos con restricciones adicionales. Este problema est\u00e1 solucionado en macOS Tahoe 26.1. Un usuario est\u00e1ndar podr\u00eda ver archivos creados a partir de una imagen de disco que pertenecen a un administrador."}], "id": "CVE-2025-43470", "lastModified": "2026-10-07T20:10:01.970", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "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-2025-43470", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-12-16T14:42:03.598738Z", "version": "2.0.3"}}]}, "published": "2025-12-12T21:15:55.000", "references": [{"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125634"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-732"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-732"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-27T22:34:03.051133+00:00", "value": {"mitigation_remediation": ["Update macOS to version 26.1 or later to apply the permission fix.", "Limit disk image mount permissions: ensure that only administrator accounts can mount or access disk images belonging to admin users.", "Modify system settings or use a local policy to prevent standard users from automatically mounting disk images as a temporary workaround."], "summary": {"action": "Apply Update", "impact": "Information Disclosure"}, "threat_synthesis": {"affected_systems": "Apple macOS is affected. Systems running macOS Tahoe before version 26.1 contain the vulnerability. Updating to macOS Tahoe 26.1 or later resolves the issue by adding the necessary restrictions.", "description_and_impact": "A permissions flaw allows a standard user to view files created from a disk image that belongs to an administrator. The issue is due to insufficient restriction of read access to those files, leading to disclosure of potentially sensitive data. The weakness corresponds to improper permission controls, represented by CWE-732.", "risk_and_exploitability": "The CVSS score of 5.5 reflects a moderate impact. The EPSS score of less than 1% indicates a very low likelihood of exploitation in the wild, and the vulnerability is not listed in the CISA KEV catalog. The attack vector is likely local, with a standard user leveraging a mounted disk image to gain unauthorized read access to administrator files. In the absence of additional mitigations, the vulnerability could result in information disclosure but not more severe damage such as elevation of privilege or code execution."}}}}, "created": "2025-12-14T21:15:12.877226+00:00", "title": "Permissions Issue Allows Standard Users to Read Administrator Disk Image Files", "updated": "2026-04-27T22:45:15.467876+00:00", "vendors": ["apple", "apple$PRODUCT$macos", "apple$PRODUCT$macos_tahoe"]}