{"id":"CVE-2026-43748","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 iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-787"],"vendor":"apple","product":"macos","affected":["macos >= 15.0, < 15.7.8","macos >= 26.0, < 26.6"],"patched":["macos 26.6"],"published":"2026-07-27","updated":"2026-09-14","sourceUpdated":"2026-09-14T21:17:10.323","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-43748","references":[{"url":"https://support.apple.com/en-us/128066","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/128067","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/128071","label":"product-security@apple.com"}],"tags":["nvd","cve.org"],"epss":0.00602,"epssPercentile":0.47506,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-07-28T14:36:06.717647Z"},"ingestedAt":"2026-09-14T21:15:17.532Z","slug":"CVE-2026-43748","body":"## Overview\n\nAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.\n\n## Affected\n\n- `macos >= 15.0, < 15.7.8`\n- `macos >= 26.0, < 26.6`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `macos 26.6`","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}