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{}

{"analysis": {"en": {"generated_at": "2026-04-28T03:07:19.221993+00:00", "value": {"mitigation_remediation": ["Apply the latest macOS update\u2014Sequoia 15.4, Sonoma 14.7.5, or Ventura 13.7.5\u2014to fix the memory handling flaw.", "Restart the system after the update to ensure all components load the patched code paths.", "Check Apple\u2019s support articles (122373, 122374, 122375) for additional guidance or firmware updates that may further reduce the risk."], "summary": {"action": "Patch Immediately", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "Apple macOS is affected. Any installation before macOS Sequoia 15.4, Sonoma 14.7.5, or Ventura 13.7.5 is vulnerable. The flaw is fixed only in the listed patch versions or later; earlier releases remain at risk and should be upgraded as soon as possible.", "description_and_impact": "A memory handling flaw was identified that can cause the system to become unresponsive. The vulnerability, designated CWE-400, allows an attacker with elevated privileges to trigger a denial\u2011of\u2011service condition by making the operating system exhaust or mismanage its memory resources. When successfully exploited, the affected macOS instance can no longer process legitimate user requests, resulting in availability loss for both local and potentially network\u2011connected services.", "risk_and_exploitability": "The CVSS score of 9.8 indicates a high\u2011severity flaw with full exploitation potential. The EPSS score of less than 1% suggests that, at present, the probability of exploitation is low, but this does not eliminate the risk. The vulnerability is not currently listed in CISA\u2019s KEV catalog, which means no known public exploits have been documented yet. Attackers would need a privileged position on the target system to trigger the memory exhaustion or mismanagement that leads to the denial\u2011of\u2011service. The impact is limited to availability and does not appear to affect confidentiality or integrity."}}}}, "created": "2026-04-28T03:15:05.542553+00:00", "title": "Privileged DoS via Improper Memory Handling in macOS", "updated": "2026-04-28T03:15:05.542567+00:00", "vendors": []}