{"id":"CVE-2017-6978","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-6978","generatedAt":"2026-10-28T19:51:07.754Z","title":"It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.","description":"An issue was discovered in certain Apple products. macOS before 10.12.5 is affected. The issue involves the \"Accessibility Framework\" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.","published":"2017-05-22T05:29:03.000Z","lastModified":"2026-06-17T01:23:25.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.0","score":7.8,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["apple/mac os x"],"epss":{"score":0.04301,"percentile":0.91092,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.06286,"percentile":0.93356},{"date":"2026-09-22","score":0.04301,"percentile":0.907}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2017-05-23","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":42056,"kind":"exploit","title":"Apple macOS - Lack of Bounds Checking in HIServices Custom CFObject Serialization Local Privilege Escalation","url":"https://www.exploit-db.com/exploits/42056","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/macos/dos/42056.c","file":"exploits/macos/dos/42056.c","published":"2017-05-23","added":"2017-05-23","updated":"2017-12-16","author":"Google Security Research","type":"dos","platform":"macos","port":null,"verified":true,"codes":["CVE-2017-6978","HT207797"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1219"}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 4.3%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://www.securitytracker.com/id/1038484","source":"product-security@apple.com"},{"url":"https://support.apple.com/HT207797","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://www.exploit-db.com/exploits/42056/","source":"product-security@apple.com"},{"url":"http://www.securitytracker.com/id/1038484","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT207797","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/42056/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-6978","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."}