{"id":"CVE-2026-113944","kind":"vulnerability","aliases":["CVE-2026-113944"],"related":[],"title":"macOS: out-of-bounds read lets an app crash the system or read kernel memory","description":"An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2. An app may be able to cause unexpected system termination or read kernel memory.","summary":"An out-of-bounds read in macOS allows a local app to trigger an unexpected system termination or read kernel memory. Apple fixed it with improved bounds checking in macOS Golden Gate 27.2.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apple-devices","endpoints","infrastructure","macos"],"not_affected_if":["already-on-macos-27.2-or-later"],"how_to_check":"- Check the installed macOS version under Apple menu > About This Mac, or run `sw_vers -productVersion` in Terminal.\n- Confirm whether the Mac is running a build older than macOS Golden Gate 27.2.","fix":"- Update macOS to `27.2` (macOS Golden Gate) or later via System Settings > General > Software Update.","status":"open","published_at":"2026-10-26T21:18:10+00:00","first_seen_at":"2026-10-26T21:20:31+00:00","triaged_at":"2026-10-26T21:21:41+00:00","updated_at":"2026-10-26T21:21:41+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-26T21:21:41Z","model":"claude-haiku-5-5","output":{"fix":"- Update macOS to `27.2` (macOS Golden Gate) or later via System Settings > General > Software Update.","reach":"local","title":"macOS: out-of-bounds read lets an app crash the system or read kernel memory","impact":"medium","summary":"An out-of-bounds read in macOS allows a local app to trigger an unexpected system termination or read kernel memory. Apple fixed it with improved bounds checking in macOS Golden Gate 27.2.","category":"infrastructure","nicknames":[],"who_cares":["macos","apple-devices","endpoints"],"confidence":0.5,"needs_auth":"unknown","worst_case":"A local app crashes the system or reads kernel memory.","analyst_note":"Check Apple's security notes for CVE-2026-113944 to confirm the affected builds, the exploit prerequisites and whether the kernel-memory read is confirmed.","how_to_check":"- Check the installed macOS version under Apple menu > About This Mac, or run `sw_vers -productVersion` in Terminal.\n- Confirm whether the Mac is running a build older than macOS Golden Gate 27.2.","needs_analyst":true,"not_affected_if":["already-on-macos-27.2-or-later"],"who_is_affected":"Any Mac running a macOS release older than Golden Gate 27.2 is affected. The sources do not name specific hardware, configurations or roles, so the exposure applies broadly to the OS.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000596,"input_tokens":3260,"output_tokens":539,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-113944':19A,22A '-2026':18A,21A '27.2':62B,83C 'abl':88C 'address':70C 'allow':37B 'app':9A,40B,85C 'appl':24B,51B 'apple-devic':23B 'bound':5A,33B,56B,67C,73C 'caus':90C 'check':57B,74C 'crash':10A 'cve':17A,20A 'devic':25B 'endpoint':26B 'fix':52B,78C 'gate':61B,82C 'golden':60B,81C 'improv':55B,72C 'infrastructur':27B 'issu':76C 'kernel':15A,49B,96C 'let':7A 'local':39B 'maco':1A,28B,36B,59B,80C 'may':86C 'memori':16A,50B,97C 'out-of-bound':2A,30B,64C 'read':6A,14A,34B,48B,68C,95C 'system':12A,45B,92C 'termin':46B,93C 'trigger':42B 'unexpect':44B,91C","nicknames":[],"mitigations":[],"who_affected":"Any Mac running a macOS release older than Golden Gate 27.2 is affected. The sources do not name specific hardware, configurations or roles, so the exposure applies broadly to the OS.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:18:10+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-113944","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113944","severity":null,"published_at":"2026-10-26T21:18:10+00:00","modified_at":"2026-10-26T21:18:10+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"}