{"id":"CVE-2026-84571","title":"A buffer overflow was addressed with improved bounds checking","summary":"A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted image may lead to unexpected app termina…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","cwe":["CWE-120"],"vendor":"apple","product":"ipados","affected":["ipados < 27.0","iphone_os < 27.0","macos < 27.0","tvos < 27.0","visionos < 27.0","watchos < 27.0"],"patched":["ipados 27.0","iphone_os 27.0","macos 27.0","tvos 27.0","visionos 27.0","watchos 27.0"],"published":"2026-09-14","updated":"2026-09-18","sourceUpdated":"2026-09-18T14:41:29.717","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-84571","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"}],"tags":["nvd","cve.org"],"epss":0.00391,"epssPercentile":0.33024,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-17T16:58:06.704303Z"},"ingestedAt":"2026-09-14T21:15:17.521Z","slug":"CVE-2026-84571","body":"## Overview\n\nA buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted image may lead to unexpected app termination.\n\n## Affected\n\n- `ipados < 27.0`\n- `iphone_os < 27.0`\n- `macos < 27.0`\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 27.0`\n- `tvos 27.0`\n- `visionos 27.0`\n- `watchos 27.0`","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":206448,"id":"CVE-2026-84571","ts":1789665846395,"field":"cvss","old":null,"new":"4.3"},{"seq":206447,"id":"CVE-2026-84571","ts":1789665846395,"field":"severity","old":"none","new":"medium"}]}