{"id":"CVE-2013-3163","published":"2013-07-10T03:46:10Z","modified":"2026-06-16T23:54:37Z","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 8 through 10 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka \"Internet Explorer Memory Corruption Vulnerability,\" a different vulnerability than CVE-2013-3144 and CVE-2013-3151.","provenance":"source","from":"NVD"},"summary":{"text":"The flaw is a memory corruption vulnerability in Microsoft Internet Explorer, affecting versions 8 through 10. An attacker who lures a user to a crafted web site can execute arbitrary code or cause a denial of service, and this requires no prior authentication but does require the user to visit the malicious page over the network.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:05:11Z"},"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":0.70676,"percentile":0.99392,"date":"2026-10-28","provenance":"source"},"kev":{"dateAdded":"2023-03-30","dueDate":"2023-04-20","ransomware":false,"requiredAction":"The impacted product is end-of-life and should be disconnected if still in use.","notes":"https://learn.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-055; https://nvd.nist.gov/vuln/detail/CVE-2013-3163","provenance":"source"},"vulncheckKev":{"dateAdded":"2014-10-28","exploitedFirstSeen":"2014-10-28","ransomware":false,"evidence":[{"url":"https://blogs.cisco.com/security/talos/opening-zxshell","date":"2014-10-28"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2023-03-30"}],"evidenceTotal":2,"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-94","name":"Improper Control of Generation of Code"}],"references":[{"url":"http://www.us-cert.gov/ncas/alerts/TA13-190A","tags":["Third Party Advisory","US Government Resource"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-055","tags":["Patch","Vendor Advisory"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17363","tags":["Broken Link"]},{"url":"http://www.us-cert.gov/ncas/alerts/TA13-190A","tags":["Third Party Advisory","US Government Resource"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-055","tags":["Patch","Vendor Advisory"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17363","tags":["Broken Link"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3163","tags":["US Government Resource"]}],"techniques":[{"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: Browser memory corruption yields code execution","mappingType":"uncategorized","evidence":[{"from":"description","quote":"allows remote attackers to execute arbitrary code","start":41,"end":90}],"confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1189","name":"Drive-by Compromise","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Drive-by via malicious website browsing","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"via a crafted web site","start":140,"end":162}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[{"id":"SRC-a7dfc4dbf8b0acd1f56a","title":"Threat Spotlight: Group 72, Opening the ZxShell","publisher":"blogs.cisco.com","url":"https://blogs.cisco.com/security/talos/opening-zxshell","date":"2014-10-28","mentions":[{"quote":"ZxShell has been observed to be distributed through phishing attacks, dropped by exploits that leverage vulnerabilities such as CVE-2011-2462, CVE-2013-3163, and CVE-2014-0322.","start":3357,"end":3533}]}],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2013-3101","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2013-3101","exploited":true,"exploitedSince":"2023-03-30","provenance":"source"},"exploits":[{"id":28187,"url":"https://www.exploit-db.com/exploits/28187","title":"Microsoft Internet Explorer - CAnchorElement Use-After-Free (MS13-055) (Metasploit)","type":"remote","platform":"windows","date":"2013-09-10","verified":true,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":1,"earliest":"2013-09-10"},"metasploit":[{"name":"MS13-055 Microsoft Internet Explorer CAnchorElement Use-After-Free","module":"exploit/windows/browser/ms13_055_canchor","type":"exploit","disclosureDate":"2013-07-09","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ms13_055_canchor.rb"}],"first":{"date":"2013-07-09","source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ms13_055_canchor.rb"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1189"],"provenance":"ai"},{"stage":"related","techniques":["T1203"],"provenance":"source"}],"timeline":[{"date":"2013-07-09","kind":"exploit-public","label":"First public exploit: Metasploit; 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1 Metasploit module"},{"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"}}