{"id":"CVE-2026-84550","title":"A race condition was addressed with additional validation","summary":"A race condition was addressed with additional validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to cause unexpected system termination.","severity":"medium","cvss":4.7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-362"],"vendor":"apple","product":"macos","affected":["macos >= 15.0, < 15.8","macos >= 26.0, < 26.7"],"patched":["macos 26.7"],"published":"2026-09-14","updated":"2026-09-16","sourceUpdated":"2026-09-16T16:17:19.577","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-84550","references":[{"url":"https://support.apple.com/en-us/149035","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/149042","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/149043","label":"product-security@apple.com"}],"tags":["nvd","cve.org"],"epss":0.00095,"epssPercentile":0.0077,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-16T15:34:35.358335Z"},"ingestedAt":"2026-09-14T21:15:17.532Z","slug":"CVE-2026-84550","body":"## Overview\n\nA race condition was addressed with additional validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to cause unexpected system termination.\n\n## Affected\n\n- `macos >= 15.0, < 15.8`\n- `macos >= 26.0, < 26.7`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `macos 26.7`","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":25.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":204948,"id":"CVE-2026-84550","ts":1789570682690,"field":"cvss","old":null,"new":"4.7"},{"seq":204947,"id":"CVE-2026-84550","ts":1789570682690,"field":"severity","old":"none","new":"medium"}]}