CVE-2025-43257

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{"affected": [{"affectedData": [{"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "15.6", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "077E4BB7-4A8B-4D18-BCD7-2938A2B8B9C8", "versionEndExcluding": "15.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "This issue was addressed with improved handling of symlinks. This issue is fixed in macOS Sequoia 15.6. An app may be able to break out of its sandbox."}, {"lang": "es", "value": "Se abord\u00f3 este problema con un manejo mejorado de enlaces simb\u00f3licos. Este problema se ha solucionado en macOS Sequoia 15.6. Una aplicaci\u00f3n podr\u00eda escapar de su sandbox."}], "id": "CVE-2025-43257", "lastModified": "2026-07-24T21:10:00.143", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 2.0, "impactScore": 6.0, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-43257", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-04-02T19:37:48.467973Z", "version": "2.0.3"}}]}, "published": "2026-04-02T19:20:15.797", "references": [{"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/124149"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-59"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,15.6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "macOS", "source": "cna", "vendor": "Apple"}, "product": "macos", "vendor": "apple"}], "analysis": {"en": {"generated_at": "2026-04-03T21:52:41.639285+00:00", "value": {"mitigation_remediation": ["Install macOS Sequoia 15.6 or later to receive the official patch.", "Verify the system update by checking the macOS version and ensuring the new sandbox behavior is in effect.", "If an immediate update is not possible, restrict or disable sandboxed applications that may use symlinks until the patch is applied.", "Monitor the system for unusual file access or symlink creation that bypasses sandbox boundaries."], "summary": {"action": "Patch Now", "impact": "Privilege Escalation"}, "threat_synthesis": {"affected_systems": "Apple macOS releases prior to Sequoia 15.6 are impacted. The 15.6 update contains the fix, so any system running an earlier version remains vulnerable. The vulnerability is relevant to any application that operates within the standard macOS sandbox environment.", "description_and_impact": "A flaw in the macOS sandbox allows a sandboxed application to create or follow a symbolic link that points outside the permitted directory tree. By exploiting this, the application can read or modify files that should be protected, potentially executing arbitrary code or leaking sensitive data. This weakness corresponds to CWE\u201159, improper handling of path traversal.", "risk_and_exploitability": "The CVSS score of 8.7 indicates a high severity, while the EPSS score below 1% suggests a low probability of exploitation in the wild. The vulnerability is not listed in the CISA KEV catalog. The likely attack vector is inferred to be local or partially local, as the payload does not describe a network\u2011exposed path; an attacker would need to supply input to a sandboxed application or gain the ability to run code within the sandbox to exploit the symlink handling flaw."}}}}, "created": "2026-04-03T07:31:46.802184+00:00", "updated": "2026-04-07T07:55:33.556830+00:00", "vendors": ["apple", "apple$PRODUCT$macos"]}