{"id":"CVE-2015-3796","url":"https://www.cyber-defence.io/tools/cve/CVE-2015-3796","generatedAt":"2026-11-05T05:57:20.127Z","title":"The TRE library in Libc in Apple iOS before 8.4.1 and OS X before 10.10.5 allows context-dependent attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted regular expression, a different…","description":"The TRE library in Libc in Apple iOS before 8.4.1 and OS X before 10.10.5 allows context-dependent attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted regular expression, a different vulnerability than CVE-2015-3797 and CVE-2015-3798.","published":"2015-08-17T00:00:10.000Z","lastModified":"2026-06-17T00:26:18.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"2.0","score":7.5,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P"},"cwe":["CWE-119"],"affected":["apple/iphone os","apple/mac os x"],"epss":{"score":0.12416,"percentile":0.96223,"date":"2026-11-04","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2015-09-22","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":38263,"kind":"exploit","title":"Apple Mac OSX Regex Engine (TRE) - Stack Buffer Overflow (PoC)","url":"https://www.exploit-db.com/exploits/38263","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/osx/dos/38263.txt","file":"exploits/osx/dos/38263.txt","published":"2015-09-22","added":"2015-09-22","updated":"2015-09-22","author":"Google Security Research","type":"dos","platform":"osx","port":null,"verified":true,"codes":["CVE-2015-3796","OSVDB-126230"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://code.google.com/p/google-security-research/issues/detail?id=428"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 12.4%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://lists.apple.com/archives/security-announce/2015/Aug/msg00002.html","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://www.securityfocus.com/bid/76343","source":"product-security@apple.com"},{"url":"http://www.securitytracker.com/id/1033275","source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT205030","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT205031","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://www.exploit-db.com/exploits/38263/","source":"product-security@apple.com"},{"url":"http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2015/Aug/msg00002.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/76343","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1033275","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT205030","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT205031","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/38263/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-3796","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."}