{"id":"CVE-2014-8146","url":"https://www.cyber-defence.io/tools/cve/CVE-2014-8146","generatedAt":"2026-10-27T17:44:39.118Z","title":"The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C in International Components for Unicode (ICU) before 55.1 does not properly track directionally isolated pieces of text, which allows…","description":"The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C in International Components for Unicode (ICU) before 55.1 does not properly track directionally isolated pieces of text, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly execute arbitrary code via crafted text.","published":"2015-05-25T22:59:00.000Z","lastModified":"2026-06-17T00:16:23.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.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/itunes","apple/iphone os","apple/mac os x","apple/watchos","icu-project/international components for unicode"],"epss":{"score":0.24739,"percentile":0.97882,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2015-06-10","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":43887,"kind":"exploit","title":"ICU library 52 < 54 - Multiple Vulnerabilities","url":"https://www.exploit-db.com/exploits/43887","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/local/43887.txt","file":"exploits/multiple/local/43887.txt","published":"2015-06-10","added":"2018-01-25","updated":"2018-01-25","author":"Pedro Ribeiro","type":"local","platform":"multiple","port":null,"verified":false,"codes":["CVE-2014-8147","CVE-2014-8146"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://github.com/pedrib/PoC/blob/a2842a650de88c582e963493d5e2711aa4a1b747/advisories/i-c-u-fail.txt"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 24.7%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://bugs.icu-project.org/trac/changeset/37162","tags":["Issue Tracking","Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html","tags":["Mailing List"],"source":"secalert@redhat.com"},{"url":"http://lists.apple.com/archives/security-announce/2015/Sep/msg00003.html","tags":["Mailing List"],"source":"secalert@redhat.com"},{"url":"http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html","tags":["Mailing List"],"source":"secalert@redhat.com"},{"url":"http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html","tags":["Mailing List"],"source":"secalert@redhat.com"},{"url":"http://openwall.com/lists/oss-security/2015/05/05/6","tags":["Mailing List"],"source":"secalert@redhat.com"},{"url":"http://seclists.org/fulldisclosure/2015/May/14","tags":["Exploit","Mailing List","Third Party 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Advisory"],"source":"secalert@redhat.com"},{"url":"https://support.apple.com/HT205212","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://support.apple.com/HT205213","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://support.apple.com/HT205221","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://support.apple.com/HT205267","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html","source":"secalert@redhat.com"},{"url":"http://bugs.icu-project.org/trac/changeset/37162","tags":["Issue Tracking","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2015/Sep/msg00003.html","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://openwall.com/lists/oss-security/2015/05/05/6","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2015/May/14","tags":["Exploit","Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2015/dsa-3323","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.kb.cert.org/vuls/id/602540","tags":["Third Party Advisory","US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/74457","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://raw.githubusercontent.com/pedrib/PoC/master/generic/i-c-u-fail.txt","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201507-04","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT205212","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT205213","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT205221","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT205267","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2014-8146","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."}