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{"analysis": {"en": {"generated_at": "2026-04-22T21:48:21.935000+00:00", "value": {"mitigation_remediation": ["Apply the macOS update that contains the fix (macOS Sequoia\u202f15.7.2, macOS Sonoma\u202f14.8.2, or macOS Tahoe\u202f26.1).", "Configure Gatekeeper to require signed applications, preventing the execution of unsigned or low\u2011trust code. ", "Inspect installed applications for unexpected or unsigned binaries, especially those that may access sensitive user data, and remove any that are questionable."], "summary": {"action": "Immediate Patch", "impact": "Sensitive Data Access"}, "threat_synthesis": {"affected_systems": "Affected systems are Intel\u2011based Mac computers running macOS up to but not including the versions that contain the fix (macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1). Any earlier releases on Intel processors are potentially vulnerable. The fix is applied via updates distributed by Apple.", "description_and_impact": "The vulnerability is a downgrade issue on Intel-based Macs that allows applications to bypass newer code\u2011signing restrictions. By exploiting this weakness, a malicious or compromised app could gain unauthorized access to sensitive user data. This flaw is classified as CWE\u2011347, a downgrade output vulnerability, meaning the system can accept a less secure version of a signature or code component.", "risk_and_exploitability": "The CVSS score of 5.5 categorizes the vulnerability as moderate in severity, and the EPSS score of less than 1\u202f% indicates a very low probability of exploitation. The vulnerability is not listed in the CISA KEV catalog. Attackers would need to run a malicious application on the target machine; the likely vector is local delivery, such as installing a rogue app or distributing compromised software that takes advantage of the downgrade in code\u2011signing enforcement. Because the issue stems from reduced trust in system signatures, a successful exploitation would primarily enable confidential data disclosure rather than immediate system compromise."}}}}, "created": "2025-11-04T16:34:44.524803+00:00", "title": "Downgrade Issue Allows Apps to Access Sensitive User Data on Intel-Based macOS", "updated": "2026-04-22T22:00:18.068292+00:00", "vendors": ["apple", "apple$PRODUCT$macos", "apple$PRODUCT$macos_sequoia", "apple$PRODUCT$macos_sonoma"]}