{"id":"CVE-2023-40407","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-40407","generatedAt":"2026-10-27T23:55:40.436Z","title":"A remote attacker may be able to cause a denial-of-service.","description":"The issue was addressed with improved bounds checks. This issue is fixed in macOS Sonoma 14. A remote attacker may be able to cause a denial-of-service.","published":"2023-09-27T15:19:09.000Z","lastModified":"2026-06-17T06:17:38.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":[],"affected":["apple/macos"],"epss":{"score":0.01732,"percentile":0.77466,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.73%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://seclists.org/fulldisclosure/2023/Oct/3","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT213940","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2023/Oct/3","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT213940","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT213940","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-40407","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}