{"id":"CVE-2026-113950","kind":"vulnerability","aliases":["CVE-2026-113950"],"related":[],"title":"Apple OS: crafted font can crash apps or corrupt process memory","description":"An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, tvOS 27.2, visionOS 27.2, watchOS 27.2. Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory.","summary":"An out-of-bounds write in Apple's font handling lets a maliciously crafted font crash an app or corrupt process memory. Apple says it is fixed in iOS 27.2, iPadOS 27.2, macOS Golden Gate 27.2, tvOS 27.2, visionOS 27.2 and watchOS 27.2.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apple-devices","infrastructure","ios","ipados","macos","tvos","visionos","watchos"],"not_affected_if":["already-on-27.2"],"how_to_check":"- Check the device's OS version in Settings > General > About (or `sw_vers -productVersion` on macOS) and compare it with `27.2`\n- unknown for any other check, the sources do not say","fix":"- Update iOS, iPadOS, macOS, tvOS, visionOS and watchOS to `27.2` or later\n- unknown for any other action, the sources do not say","status":"open","published_at":"2026-10-26T21:18:11+00:00","first_seen_at":"2026-10-26T21:20:31+00:00","triaged_at":"2026-10-26T21:21:37+00:00","updated_at":"2026-10-26T21:21:37+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-26T21:21:37Z","model":"claude-haiku-5-5","output":{"fix":"- Update iOS, iPadOS, macOS, tvOS, visionOS and watchOS to `27.2` or later\n- unknown for any other action, the sources do not say","reach":"local","title":"Apple OS: crafted font can crash apps or corrupt process memory","impact":"high","summary":"An out-of-bounds write in Apple's font handling lets a maliciously crafted font crash an app or corrupt process memory. Apple says it is fixed in iOS 27.2, iPadOS 27.2, macOS Golden Gate 27.2, tvOS 27.2, visionOS 27.2 and watchOS 27.2.","category":"infrastructure","nicknames":[],"who_cares":["ios","ipados","macos","tvos","visionos","watchos","apple-devices"],"confidence":0.5,"needs_auth":"no","worst_case":"Code runs in the affected process or the app crashes","analyst_note":"Confirm from Apple's security release notes whether the font flaw allows code execution and whether it is exploited; the NVD entry has no score yet.","how_to_check":"- Check the device's OS version in Settings > General > About (or `sw_vers -productVersion` on macOS) and compare it with `27.2`\n- unknown for any other check, the sources do not say","needs_analyst":true,"not_affected_if":["already-on-27.2"],"who_is_affected":"Anyone running an Apple OS release older than 27.2 on an iPhone, iPad, Mac, Apple TV, Vision Pro or Apple Watch is exposed to the font handling flaw. The sources do not say whether specific apps or configurations change exposure, so the safe reading is that all devices on older builds are affected. Devices already on 27.2 or later can skip it.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000648,"input_tokens":3319,"output_tokens":632,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-113950':14A,17A '-2026':13A,16A '27.2':58B,60B,64B,66B,68B,71B,91C,94C,98C,100C,102C,104C 'address':80C 'app':7A,46B,114C 'appl':1A,19B,35B,51B 'apple-devic':18B 'bound':32B,76C,83C 'check':84C 'corrupt':9A,48B,117C 'craft':3A,42B,108C 'crash':6A,44B 'cve':12A,15A 'devic':20B 'fix':55B,88C 'font':4A,37B,43B,109C 'gate':63B,97C 'golden':62B,96C 'handl':38B 'improv':82C 'infrastructur':21B 'io':22B,57B,90C 'ipado':23B,59B,93C 'issu':78C,86C 'lead':111C 'let':39B 'maco':24B,61B,95C 'malici':41B,107C 'may':110C 'memori':11A,50B,119C 'os':2A 'out-of-bound':29B,73C 'process':10A,49B,105C,118C 'say':52B 'termin':115C 'tvos':25B,65B,99C 'unexpect':113C 'visiono':26B,67B,101C 'watcho':27B,70B,103C 'write':33B,77C","nicknames":[],"mitigations":[],"who_affected":"Anyone running an Apple OS release older than 27.2 on an iPhone, iPad, Mac, Apple TV, Vision Pro or Apple Watch is exposed to the font handling flaw. The sources do not say whether specific apps or configurations change exposure, so the safe reading is that all devices on older builds are affected. Devices already on 27.2 or later can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:18:11+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-113950","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113950","severity":null,"published_at":"2026-10-26T21:18:11+00:00","modified_at":"2026-10-26T21:18:11+00:00","first_seen_at":"2026-10-26T21:20:31+00:00","fetched_at":"2026-10-26T21:20:31+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"}