{"id":"CVE-2026-86950","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 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1, macOS Tahoe 26.7.1. Processing a maliciously crafted file may lead to arbitrary code exe…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-787"],"vendor":"apple","product":"ipados","affected":["ipados < 26.7.1","iphone_os < 26.7.1","macos < 15.8.1","macos >= 26.0, < 26.7.1"],"patched":["ipados 26.7.1","iphone_os 26.7.1","macos 26.7.1"],"published":"2026-09-28","updated":"2026-10-01","sourceUpdated":"2026-10-01T18:17:28.430","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-86950","references":[{"url":"https://support.apple.com/en-us/149226","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/149228","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/149229","label":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2026/Sep/89","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2026/Sep/90","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2026/Sep/91","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://support.apple.com/en-us/149225"}],"tags":["nvd","cve.org","in-the-wild","exploit-available","kev"],"exploited":true,"exploitAvailable":true,"ssvc":{"exploitation":"active","automatable":"no","technicalImpact":"total","timestamp":"2026-09-30T03:55:58.823862Z"},"epss":0.26166,"epssPercentile":0.97984,"kev":true,"kevDateAdded":"2026-09-29","kevDueDate":"2026-10-13","kevRansomware":false,"exploits":{"github":7,"githubRepos":["https://github.com/msuiche/hotcell","https://github.com/decalage2/detect_CVE-2026-86950","https://github.com/34zY/CVE-2026-86950"],"checkedAt":"2026-10-27T19:19:07.444Z"},"zeroDay":true,"ingestedAt":"2026-09-28T20:20:05.661Z","slug":"CVE-2026-86950","body":"## Overview\n\nAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1, macOS Tahoe 26.7.1. Processing a maliciously crafted file may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 27.\n\n## Affected\n\n- `ipados < 26.7.1`\n- `iphone_os < 26.7.1`\n- `macos < 15.8.1`\n- `macos >= 26.0, < 26.7.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `ipados 26.7.1`\n- `iphone_os 26.7.1`\n- `macos 26.7.1`","depth":"abyssal","depthScore":79,"depthScoreParts":{"impact":48.4,"likelihood":5.2,"exploitation":25,"ransomware":0},"changes":[{"seq":230239,"id":"CVE-2026-86950","ts":1793128760238,"field":"epss","old":"0.01242","new":"0.26166"},{"seq":213271,"id":"CVE-2026-86950","ts":1790744259163,"field":"zero_day","old":"false","new":"true"},{"seq":213270,"id":"CVE-2026-86950","ts":1790744259163,"field":"kev","old":"false","new":"true"},{"seq":212745,"id":"CVE-2026-86950","ts":1790700030363,"field":"exploited","old":"false","new":"true"},{"seq":212603,"id":"CVE-2026-86950","ts":1790670642466,"field":"exploit_available","old":"false","new":"true"}]}