{"cve":"CVE-2023-40400","nvd":{"published":"2023-09-27T15:19:07.467","modified":"2026-06-17T06:17:36.163","status":"Modified","description":"This issue was addressed with improved checks. This issue is fixed in tvOS 17, iOS 17 and iPadOS 17, watchOS 10, macOS Sonoma 14. A remote user may cause an unexpected app termination or arbitrary code execution.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":[],"references":["http://seclists.org/fulldisclosure/2023/Oct/10","http://seclists.org/fulldisclosure/2023/Oct/3","http://seclists.org/fulldisclosure/2023/Oct/8","http://seclists.org/fulldisclosure/2023/Oct/9","https://support.apple.com/en-us/HT213936"],"products":["apple:ipados","apple:iphone_os","apple:macos","apple:tvos","apple:watchos"],"source":"nvd","synced_at":"2026-10-19T21:39:34.467980132+00:00"},"epss":{"cve":"CVE-2023-40400","score":0.01833,"percentile":0.78903,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}