CVE-2026-28835

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,14.8.5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,15.7.5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.4)"}}], "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": "2026-03-25T22:25:12.695454+00:00", "value": {"mitigation_remediation": ["Apply the latest macOS updates, specifically macOS Sequoia 15.7.5 or newer, macOS Sonoma 14.8.5 or newer, or macOS Tahoe 26.4 or newer. ", "Avoid mounting SMB shares from untrusted or unknown servers. ", "Monitor system logs for unexpected crashes or SMB connection attempts. ", "Ensure that automatic mounting of SMB shares is disabled or strictly filtered if updates cannot be applied immediately."], "summary": {"action": "Immediate Patch", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "Apple\u2019s macOS operating system is affected. The flaw is present in all releases prior to the security updates listed in Apple\u2019s documentation: macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, and macOS Tahoe 26.4. Users running any earlier version of these macOS releases are susceptible.", "description_and_impact": "This vulnerability is a use\u2011after\u2011free flaw classified as CWE\u2011416. A maliciously crafted SMB network share can trigger the flaw in macOS\u2019s memory management, resulting in an unexpected system crash. The primary impact is a denial of service: the operating system terminates, causing loss of availability for all running applications and potentially disrupting critical services.", "risk_and_exploitability": "The CVSS score of 6.5 indicates a moderate severity. Exploit probability is low, with an EPSS score of less than 1%, and the vulnerability is not catalogued in the CISA KEV list. Attackers would need to gain network access to deliver a malicious SMB share. Although the CVE does not explicitly state an attack vector, the description suggests a remote exploitation path via the SMB protocol."}}}}, "created": "2026-03-25T11:36:17.551392+00:00", "title": "Use\u2011After\u2011Free Leading to System Termination via Malicious SMB Share", "updated": "2026-03-26T12:17:55.659335+00:00", "vendors": ["apple", "apple$PRODUCT$macos"]}