{"id":"CVE-2015-2502","published":"2015-08-19T10:59:00Z","modified":"2026-06-17T00:24:12Z","title":"Microsoft Internet Explorer Memory Corruption Vulnerability","vendor":"Microsoft","product":"Internet Explorer","tier":"core","eol":{"product":"Internet Explorer","since":"2022-06-15","note":"No security updates; remove it."},"description":{"text":"Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka \"Memory Corruption Vulnerability,\" as exploited in the wild in August 2015.","provenance":"source","from":"NVD"},"summary":{"text":"A memory corruption flaw in Microsoft Internet Explorer versions 7 through 11 allows attackers to trigger out-of-bounds writes within the browser. An attacker can execute arbitrary code or cause a denial of service by luring a user to a crafted web site, requiring no authentication but user interaction.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:10:30Z"},"cvss":{"score":8.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.51001,"percentile":0.98925,"date":"2026-10-28","provenance":"source"},"kev":{"dateAdded":"2022-04-13","dueDate":"2022-05-04","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2015-2502","provenance":"source"},"vulncheckKev":{"dateAdded":"2015-08-18","exploitedFirstSeen":"2015-08-18","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2015-08-18"},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-2502","date":"2015-08-19"},{"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":4,"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-787","name":"Out-of-bounds Write"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"references":[{"url":"http://twitter.com/Laughing_Mantis/statuses/633839231840841728","tags":["Exploit"]},{"url":"http://twitter.com/Laughing_Mantis/statuses/633839771865886721","tags":["Press/Media Coverage"]},{"url":"http://www.securityfocus.com/bid/76403","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1033317","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityweek.com/microsoft-issues-emergency-patch-critical-ie-flaw-exploited-wild","tags":["Press/Media Coverage"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-093","tags":["Patch","Vendor Advisory"]},{"url":"http://twitter.com/Laughing_Mantis/statuses/633839231840841728","tags":["Exploit"]},{"url":"http://twitter.com/Laughing_Mantis/statuses/633839771865886721","tags":["Press/Media Coverage"]},{"url":"http://www.securityfocus.com/bid/76403","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1033317","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityweek.com/microsoft-issues-emergency-patch-critical-ie-flaw-exploited-wild","tags":["Press/Media Coverage"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-093","tags":["Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-2502","tags":["US Government Resource"]}],"techniques":[{"id":"T1189","name":"Drive-by Compromise","tactics":["initial-access"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 1)","mappingType":"uncategorized","evidence":[],"confidence":"low","confidenceNote":"CTID attack_to_cve Phase 1 \"Uncategorized\" mapping (not staged by impact)"},{"id":"T1203","name":"Exploitation for Client Execution","tactics":["execution"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve","ai-mapping"],"basisDetail":"CTID attack_to_cve (Phase 1); claude-haiku-5-5: Memory corruption leads to client code execution","mappingType":"uncategorized","evidence":[{"from":"description","quote":"allows remote attackers to execute arbitrary code or cause a denial of service","start":41,"end":119}],"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: Memory corruption can crash browser","mappingType":"primary_impact","evidence":[{"from":"description","quote":"cause a denial of service (memory corruption)","start":94,"end":139}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2015-2595","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-2595","exploited":true,"exploitedSince":"2022-04-13","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":["http://twitter.com/Laughing_Mantis/statuses/633839231840841728"],"flow":[{"stage":"primary","techniques":["T1499.004"],"provenance":"ai"},{"stage":"related","techniques":["T1203"],"provenance":"source"},{"stage":"related","techniques":["T1189"],"provenance":"source","lowConfidence":true}],"timeline":[{"date":"2015-08-18","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","provenance":"source"},{"date":"2015-08-19","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2015-2502","provenance":"source"},{"date":"2022-04-13","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2022-04-13","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-2595","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":2429},"priority":{"score":53.9,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 4090 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.79,"detail":"percentile 0.9892"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 NVD reference tagged Exploit"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.16,"detail":"base score 8.8"},{"name":"End-of-life product","points":-15.0,"detail":"No patches exist; remove or isolate it"}]},"lineage":{"familyId":"fam-class-microsoft-internet-explorer-cwe-787"}}