{"id":"CVE-2026-84619","title":"An out-of-bounds write issue was addressed with improved bounds checking","summary":"An out-of-bounds write issue was addressed with improved bounds checking. 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 or write kernel memory.","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H","cwe":["CWE-787"],"vendor":"apple","product":"macos","affected":["macos >= 15.0, < 15.8","macos >= 26.0, < 26.7"],"patched":["macos 26.7"],"published":"2026-09-14","updated":"2026-09-23","sourceUpdated":"2026-09-23T19:08:01.557","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-84619","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":0.00118,"epssPercentile":0.01968,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-15T16:39:22.650471Z"},"ingestedAt":"2026-09-14T21:15:17.521Z","slug":"CVE-2026-84619","body":"## Overview\n\nAn out-of-bounds write issue was addressed with improved bounds checking. 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 or write kernel memory.\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":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":204332,"id":"CVE-2026-84619","ts":1789494096912,"field":"cvss","old":null,"new":"6.1"},{"seq":204331,"id":"CVE-2026-84619","ts":1789494096912,"field":"severity","old":"none","new":"medium"}]}