{"id":"CVE-2026-84613","kind":"vulnerability","aliases":["CVE-2026-84613"],"related":[],"title":"Apple iOS and macOS: out-of-bounds write lets a nearby attacker crash the system","description":"An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An attacker in radio range may be able to cause unexpected system termination.","summary":"An out-of-bounds write in an Apple radio-facing component lets an attacker within radio range cause unexpected system termination. The sources describe a crash, not code execution or data theft.","severity":"medium","cvss":6.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apple-devices","infrastructure","ios","ipados","macos"],"not_affected_if":["already-patched"],"how_to_check":"- Check the installed version under Settings > General > About on iOS and iPadOS, or `sw_vers -productVersion` on macOS.\n- Compare the result against the fixed versions listed in the sources (iOS 26.7, iPadOS 26.7, macOS Tahoe 26.7, macOS Sequoia 15.8).","fix":"- Update iOS and iPadOS to 26.7 or later.\n- Update macOS Tahoe to 26.7 or later, or macOS Sequoia to 15.8 or later.\n- Update tvOS, visionOS and watchOS to the 27 releases named in the sources.","status":"open","published_at":"2026-10-20T01:17:24+00:00","first_seen_at":"2026-10-23T21:57:19+00:00","triaged_at":"2026-10-25T03:55:43+00:00","updated_at":"2026-10-25T03:55:43+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-25T03:55:43Z","model":"claude-haiku-5-5","output":{"fix":"- Update iOS and iPadOS to 26.7 or later.\n- Update macOS Tahoe to 26.7 or later, or macOS Sequoia to 15.8 or later.\n- Update tvOS, visionOS and watchOS to the 27 releases named in the sources.","reach":"network","title":"Apple iOS and macOS: out-of-bounds write lets a nearby attacker crash the system","impact":"low","summary":"An out-of-bounds write in an Apple radio-facing component lets an attacker within radio range cause unexpected system termination. The sources describe a crash, not code execution or data theft.","category":"infrastructure","nicknames":[],"who_cares":["ios","ipados","macos","apple-devices"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker in radio range crashes the device; no code execution stated.","analyst_note":"Sources do not name the affected radio component or the exact trigger; check Apple's security notes for the component name.","how_to_check":"- Check the installed version under Settings > General > About on iOS and iPadOS, or `sw_vers -productVersion` on macOS.\n- Compare the result against the fixed versions listed in the sources (iOS 26.7, iPadOS 26.7, macOS Tahoe 26.7, macOS Sequoia 15.8).","needs_analyst":true,"not_affected_if":["already-patched"],"who_is_affected":"Apple device owners running the affected iOS, iPadOS, macOS, tvOS, visionOS or watchOS builds named in the sources. The sources do not name the specific radio component, so the exact exposure path is unknown. Devices already on the listed fixed versions are not affected.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000644,"input_tokens":3350,"output_tokens":618,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':18A,21A '-84613':19A,22A '15.8':98C '26.7':83C,86C,101C '27':88C,91C,95C,103C,105C,107C 'abl':115C 'address':72C 'appl':1A,24B,38B 'apple-devic':23B 'attack':13A,45B,109C 'bound':8A,34B,68C,75C 'caus':49B,117C 'check':76C 'code':59B 'compon':42B 'crash':14A,57B 'cve':17A,20A 'data':62B 'describ':55B 'devic':25B 'execut':60B 'face':41B 'fix':80C 'gate':94C 'golden':93C 'improv':74C 'infrastructur':26B 'io':2A,27B,82C,87C 'ipado':28B,85C,90C 'issu':70C,78C 'let':10A,43B 'maco':4A,29B,92C,96C,99C 'may':113C 'nearbi':12A 'out-of-bound':5A,31B,65C 'radio':40B,47B,111C 'radio-fac':39B 'rang':48B,112C 'sequoia':97C 'sourc':54B 'system':16A,51B,119C 'taho':100C 'termin':52B,120C 'theft':63B 'tvos':102C 'unexpect':50B,118C 'visiono':104C 'watcho':106C 'within':46B 'write':9A,35B,69C","nicknames":[],"mitigations":[],"who_affected":"Apple device owners running the affected iOS, iPadOS, macOS, tvOS, visionOS or watchOS builds named in the sources. The sources do not name the specific radio component, so the exact exposure path is unknown. Devices already on the listed fixed versions are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T01:17:24+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_by":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-84613","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84613","severity":null,"published_at":"2026-10-20T01:17:24+00:00","modified_at":"2026-10-20T15:17:31+00:00","first_seen_at":"2026-10-23T21:57:19+00:00","fetched_at":"2026-10-23T22:28:57+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}