{"id":"CVE-2026-84511","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 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-787"],"vendor":"apple","product":"ipados","affected":["ipados < 27.0","iphone_os < 27.0","macos >= 15.0, < 15.8","macos >= 26.0, < 26.7","tvos < 27.0","visionos < 27.0","watchos < 27.0"],"patched":["ipados 27.0","iphone_os 27.0","macos 26.7","tvos 27.0","visionos 27.0","watchos 27.0"],"published":"2026-09-14","updated":"2026-09-16","sourceUpdated":"2026-09-16T19:43:25.860","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-84511","references":[{"url":"https://support.apple.com/en-us/149034","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/149035","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/149036","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/149037","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/149038","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":0.00162,"epssPercentile":0.05784,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-16T15:06:39.170633Z"},"ingestedAt":"2026-09-14T21:15:17.534Z","slug":"CVE-2026-84511","body":"## Overview\n\nAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted asset catalog may lead to unexpected process termination.\n\n## Affected\n\n- `ipados < 27.0`\n- `iphone_os < 27.0`\n- `macos >= 15.0, < 15.8`\n- `macos >= 26.0, < 26.7`\n- `tvos < 27.0`\n- `visionos < 27.0`\n- `watchos < 27.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `ipados 27.0`\n- `iphone_os 27.0`\n- `macos 26.7`\n- `tvos 27.0`\n- `visionos 27.0`\n- `watchos 27.0`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":205396,"id":"CVE-2026-84511","ts":1789574383602,"field":"cvss","old":null,"new":"7.8"},{"seq":205395,"id":"CVE-2026-84511","ts":1789574383602,"field":"severity","old":"none","new":"high"}]}