{"id":"CVE-2026-112683","kind":"vulnerability","aliases":["CVE-2026-112683"],"related":[],"title":"Apple iOS and macOS: crafted font can crash apps or corrupt memory","description":"An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, visionOS 27.2. Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory.","summary":"A memory write past the end of a buffer in Apple's font processing lets a maliciously crafted font crash an app or corrupt process memory. The sources say the impact is app termination or memory corruption, not confirmed code execution.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apple","infrastructure","ios","ipados","macos","visionos"],"not_affected_if":["already-patched"],"how_to_check":"- Check the installed OS version under Settings > General > About (iOS/iPadOS) or Apple menu > About This Mac (macOS) and compare with the fixed releases\n- unknown for any other check, the sources do not say","fix":"- Update iOS and iPadOS to `26.7.2` or `27.2`\n- Update macOS Tahoe to `26.7.2`, macOS Sequoia to `15.8.2`, or macOS Golden Gate to `27.2`\n- Update visionOS to `27.2`","status":"open","published_at":"2026-10-26T21:18:02+00:00","first_seen_at":"2026-10-26T21:20:30+00:00","triaged_at":"2026-10-26T21:23:31+00:00","updated_at":"2026-10-26T21:23:31+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-26T21:23:31Z","model":"claude-haiku-5-5","output":{"fix":"- Update iOS and iPadOS to `26.7.2` or `27.2`\n- Update macOS Tahoe to `26.7.2`, macOS Sequoia to `15.8.2`, or macOS Golden Gate to `27.2`\n- Update visionOS to `27.2`","reach":"unknown","title":"Apple iOS and macOS: crafted font can crash apps or corrupt memory","impact":"medium","summary":"A memory write past the end of a buffer in Apple's font processing lets a maliciously crafted font crash an app or corrupt process memory. The sources say the impact is app termination or memory corruption, not confirmed code execution.","category":"infrastructure","nicknames":[],"who_cares":["apple","ios","ipados","macos","visionos"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker crashes apps or corrupts process memory via a crafted font","analyst_note":"Check Apple's security release notes for this CVE to confirm whether the memory corruption can lead to code execution and whether the font attack needs user action, such as opening a file or message.","how_to_check":"- Check the installed OS version under Settings > General > About (iOS/iPadOS) or Apple menu > About This Mac (macOS) and compare with the fixed releases\n- unknown for any other check, the sources do not say","needs_analyst":true,"not_affected_if":["already-patched"],"who_is_affected":"Any device running the listed Apple OS versions before the fixed releases is affected, since the flaw is in system font processing that apps and the OS use. Devices already on the fixed versions are not affected. The sources do not say whether specific configurations change exposure.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000639,"input_tokens":3354,"output_tokens":607,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-112683':15A,18A '-2026':14A,17A '15.8.2':100C '26.7.2':85C,88C,103C '27.2':90C,93C,97C,105C 'address':74C 'app':9A,46B,57B,115C 'appl':1A,19B,35B 'bound':70C,77C 'buffer':33B 'check':78C 'code':64B 'confirm':63B 'corrupt':11A,48B,61B,118C 'craft':5A,42B,109C 'crash':8A,44B 'cve':13A,16A 'end':30B 'execut':65B 'fix':82C 'font':6A,37B,43B,110C 'gate':96C 'golden':95C 'impact':55B 'improv':76C 'infrastructur':20B 'io':2A,21B,84C,89C 'ipado':22B,87C,92C 'issu':72C,80C 'lead':112C 'let':39B 'maco':4A,23B,94C,98C,101C 'malici':41B,108C 'may':111C 'memori':12A,26B,50B,60B,120C 'out-of-bound':67C 'past':28B 'process':38B,49B,106C,119C 'say':53B 'sequoia':99C 'sourc':52B 'taho':102C 'termin':58B,116C 'unexpect':114C 'visiono':24B,104C 'write':27B,71C","nicknames":[],"mitigations":[],"who_affected":"Any device running the listed Apple OS versions before the fixed releases is affected, since the flaw is in system font processing that apps and the OS use. Devices already on the fixed versions are not affected. The sources do not say whether specific configurations change exposure.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:18:02+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112683","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112683","severity":null,"published_at":"2026-10-26T21:18:02+00:00","modified_at":"2026-10-26T21:18:02+00:00","first_seen_at":"2026-10-26T21:20:30+00:00","fetched_at":"2026-10-26T21:20:30+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"}