{"id":"CVE-2023-28206","kind":"vulnerability","aliases":["CVE-2023-28206"],"related":[],"title":"An out-of-bounds write issue was addressed with improved input validation","description":"An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Monterey 12.6.5, iOS 16.4.1 and iPadOS 16.4.1, macOS Ventura 13.3.1, iOS 15.7.5 and iPadOS 15.7.5, macOS Big Sur 11.7.6. An app may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited.","summary":"Apple's IOSurfaceAccelerator component in iOS, iPadOS and macOS has an out-of-bounds write bug. A malicious app can use it to run code with kernel privileges.","severity":"high","cvss":8.6,"epss":null,"exploited":true,"exploited_at":"2023-04-10T00:00:00+00:00","products":[{"name":"Apple iOS, iPadOS, and macOS","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"apple ipados","fixed":["15.7.5"],"affected":"< 15.7.5","ecosystem":"vendor"},{"name":"apple ipados","fixed":["16.4.1"],"affected":">= 16.0, < 16.4.1","ecosystem":"vendor"},{"name":"apple iphone os","fixed":["15.7.5"],"affected":"< 15.7.5","ecosystem":"vendor"},{"name":"apple iphone os","fixed":["16.4.1"],"affected":">= 16.0, < 16.4.1","ecosystem":"vendor"},{"name":"apple macos","fixed":["11.7.6"],"affected":"< 11.7.6","ecosystem":"vendor"},{"name":"apple macos","fixed":["12.6.5"],"affected":">= 12.0, < 12.6.5","ecosystem":"vendor"},{"name":"apple macos","fixed":["13.3.1"],"affected":">= 13.0, < 13.3.1","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["apple-devices","exploited","ios","ipados","macos","vendor"],"not_affected_if":["fully-patched-devices"],"how_to_check":null,"fix":"Apply the Apple updates for iOS, iPadOS and macOS per vendor instructions, as CISA requires.","status":"open","published_at":"2023-04-10T00:00:00+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:06:58+00:00","updated_at":"2026-10-23T22:29:04+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-23T21:06:58Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Apple updates for iOS, iPadOS and macOS per vendor instructions, as CISA requires.","reach":"local","impact":"high","summary":"Apple's IOSurfaceAccelerator component in iOS, iPadOS and macOS has an out-of-bounds write bug. A malicious app can use it to run code with kernel privileges.","category":"vendor","who_cares":["ios","ipados","macos","apple-devices"],"confidence":0.6,"needs_auth":"no","worst_case":"Malicious app gains kernel privileges and full control of the device.","analyst_note":"Confirm the fixed OS versions and vendor advisory from Apple's security releases page, since the sources give no version list.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["fully-patched-devices"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000445,"input_tokens":2842,"output_tokens":322,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2023':15A,18A '-28206':16A,19A '11.7.6':115C '12.6.5':98C '13.3.1':106C '15.7.5':108C,111C '16.4.1':100C,103C 'abl':120C 'activ':140C 'address':9A,86C 'and':23A 'app':68B,117C 'appl':42B,49B,128C 'apple':20A,25A,27A,29A,32A,35A,37A,39A 'apple-devic':41B 'arbitrari':123C 'awar':130C 'big':113C 'bound':5A,63B,82C 'bug':65B 'code':74B,124C 'compon':52B 'cve':14A,17A 'devic':43B 'execut':122C 'exploit':44B,141C 'fix':94C 'improv':11A,88C 'input':12A,89C 'io':45B,54B,99C,107C 'ios':21A 'iosurfaceacceler':51B 'ipado':46B,55B,102C,110C 'ipados':22A,26A,28A 'iphone':30A,33A 'issu':7A,84C,92C,136C 'kernel':76B,126C 'maco':47B,57B,96C,104C,112C 'macos':24A,36A,38A,40A 'malici':67B 'may':118C,137C 'monterey':97C 'os':31A,34A 'out-of-bound':2A,60B,79C 'privileg':77B,127C 'report':133C 'run':73B 'sur':114C 'use':70B 'valid':13A,90C 'vendor':48B 'ventura':105C 'write':6A,64B,83C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2023-04-10T00:00:00+00:00","kev":{"dateAdded":"2023-04-10","dueDate":"2023-05-01","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2023-28206","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-28206","severity":null,"published_at":"2023-04-10T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T12:39:23+00:00","note":null},{"source":"nvd","external_id":"CVE-2023-28206","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28206","severity":null,"published_at":"2023-04-10T19:15:07+00:00","modified_at":"2026-06-17T05:47:06+00:00","first_seen_at":"2026-10-23T22:29:04+00:00","fetched_at":"2026-10-23T22:29:04+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"}