{"id":"CVE-2026-43683","title":"An out-of-bounds read was addressed with improved bounds checking","summary":"An out-of-bounds read 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 process termination or disclose process memory.","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","cwe":["CWE-125"],"vendor":"apple","product":"macos","affected":["macos >= 15.0, < 15.8","macos >= 26.0, < 26.7"],"patched":["macos 26.7"],"published":"2026-09-14","updated":"2026-09-18","sourceUpdated":"2026-09-18T14:40:16.130","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-43683","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":0.00163,"epssPercentile":0.05922,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-17T15:53:18.250544Z"},"ingestedAt":"2026-09-14T21:15:17.529Z","slug":"CVE-2026-43683","body":"## Overview\n\nAn out-of-bounds read 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 process termination or disclose process 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":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":206186,"id":"CVE-2026-43683","ts":1789662142981,"field":"cvss","old":null,"new":"7.1"},{"seq":206185,"id":"CVE-2026-43683","ts":1789662142981,"field":"severity","old":"none","new":"high"}]}