{"id":"CVE-2015-5123","published":"2015-07-14T10:59:01Z","modified":"2026-06-17T00:28:31Z","title":"Adobe Flash Player Use-After-Free Vulnerability","vendor":"Adobe","product":"Flash Player","tier":"core","eol":{"product":"Adobe Flash Player","since":"2020-12-31","note":"No security updates; remove it."},"description":{"text":"Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.302 on Windows and OS X, 14.x through 18.0.0.203 on Windows and OS X, 11.x through 11.2.202.481 on Linux, and 12.x through 18.0.0.204 on Linux Chrome installations allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that overrides a valueOf function, as exploited in the wild in July 2015.","provenance":"source","from":"NVD"},"summary":{"text":"A use-after-free flaw in the BitmapData class of the ActionScript 3 implementation in Adobe Flash Player allows memory corruption that can lead to arbitrary code execution or denial of service. A remote attacker needs only to deliver crafted Flash content that overrides a valueOf function, with no authentication, no special configuration, and no user interaction required.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:12:18Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.1883,"percentile":0.97273,"date":"2026-10-28","provenance":"source"},"kev":{"dateAdded":"2022-04-13","dueDate":"2022-05-04","ransomware":false,"requiredAction":"The impacted product is end-of-life and should be disconnected if still in use.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2015-5123","provenance":"source"},"vulncheckKev":{"dateAdded":"2015-07-05","exploitedFirstSeen":"2015-07-05","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2015-07-05"},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-5123","date":"2015-07-14"},{"url":"https://resources.infosecinstitute.com/topic/the-hacking-team-hack-when-hackers-have-become-the-target/","date":"2015-07-21"},{"url":"https://www.trendmicro.com/en_us/research/15/g/hacking-team-leak-uncovers-another-windows-zero-day-ms-releases-patch.html","date":"2015-07-21"},{"url":"https://www.scribd.com/document/516749423/inzimam-2019-ijca-919742","date":"2019-12-26"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-04-13"}],"evidenceTotal":6,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"references":[{"url":"http://blog.trendmicro.com/trendlabs-security-intelligence/new-zero-day-vulnerability-cve-2015-5123-in-adobe-flash-emerges-from-hacking-team-leak/","tags":["Broken Link","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00028.html","tags":["Mailing List","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00029.html","tags":["Mailing List","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00032.html","tags":["Mailing List","Third Party Advisory"]},{"url":"http://marc.info/?l=bugtraq&m=144050155601375&w=2","tags":["Mailing List","Third Party Advisory"]},{"url":"http://rhn.redhat.com/errata/RHSA-2015-1235.html","tags":["Third Party Advisory"]},{"url":"http://www.kb.cert.org/vuls/id/918568","tags":["Third Party Advisory","US Government Resource"]},{"url":"http://www.securityfocus.com/bid/75710","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1032890","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.us-cert.gov/ncas/alerts/TA15-195A","tags":["Third Party Advisory","US Government Resource"]},{"url":"https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04796784","tags":["Broken Link","Third Party Advisory"]},{"url":"https://helpx.adobe.com/security/products/flash-player/apsa15-04.html","tags":["Broken Link","Vendor Advisory"]},{"url":"https://helpx.adobe.com/security/products/flash-player/apsb15-18.html","tags":["Broken Link","Vendor Advisory"]},{"url":"https://security.gentoo.org/glsa/201508-01","tags":["Third Party Advisory"]},{"url":"http://blog.trendmicro.com/trendlabs-security-intelligence/new-zero-day-vulnerability-cve-2015-5123-in-adobe-flash-emerges-from-hacking-team-leak/","tags":["Broken Link","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00028.html","tags":["Mailing List","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00029.html","tags":["Mailing List","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00032.html","tags":["Mailing List","Third Party Advisory"]},{"url":"http://marc.info/?l=bugtraq&m=144050155601375&w=2","tags":["Mailing List","Third Party Advisory"]},{"url":"http://rhn.redhat.com/errata/RHSA-2015-1235.html","tags":["Third Party Advisory"]},{"url":"http://www.kb.cert.org/vuls/id/918568","tags":["Third Party Advisory","US Government Resource"]},{"url":"http://www.securityfocus.com/bid/75710","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1032890","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.us-cert.gov/ncas/alerts/TA15-195A","tags":["Third Party Advisory","US Government Resource"]},{"url":"https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04796784","tags":["Broken Link","Third Party Advisory"]},{"url":"https://helpx.adobe.com/security/products/flash-player/apsa15-04.html","tags":["Broken Link","Vendor 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corruption","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allows remote attackers to execute arbitrary code","start":302,"end":351}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1499.004","name":"Application or System Exploitation","tactics":["impact"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Denial of service through memory corruption","mappingType":"primary_impact","evidence":[{"from":"description","quote":"or cause a denial of service (memory corruption)","start":352,"end":400}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2015-5138","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-5138","exploited":true,"exploitedSince":"2022-04-13","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"primary","techniques":["T1059","T1499.004"],"provenance":"ai"},{"stage":"related","techniques":["T1189","T1203","T1204.002"],"provenance":"ai","lowConfidence":true}],"timeline":[{"date":"2015-07-05","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","provenance":"source"},{"date":"2015-07-14","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2015-5123","provenance":"source"},{"date":"2022-04-13","kind":"kev","label":"Added to CISA 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product","points":-15.0,"detail":"No patches exist; remove or isolate it"}]},"lineage":{"familyId":"fam-class-adobe-flash-player-cwe-416"}}