{"id":"CVE-2017-0022","published":"2017-03-17T00:59:00Z","modified":"2026-06-17T00:56:56Z","title":"Microsoft XML Core Services Information Disclosure Vulnerability","vendor":"Microsoft","product":"XML Core Services","tier":"core","eol":null,"description":{"text":"Microsoft XML Core Services (MSXML) in Windows 10 Gold, 1511, and 1607; Windows 7 SP1; Windows 8.1; Windows RT 8.1; Windows Server 2008 SP2 and R2 SP1; Windows Server 2012 Gold and R2; Windows Server 2016; and Windows Vista SP2 improperly handles objects in memory, allowing attackers to test for files on disk via a crafted web site, aka \"Microsoft XML Information Disclosure Vulnerability.\"","provenance":"source","from":"NVD"},"summary":{"text":"Microsoft XML Core Services (MSXML) on several Windows versions, including Windows 10, Windows 7 SP1, Windows 8.1, and multiple Windows Server releases, improperly handles objects in memory. An attacker can exploit this by luring a user to a crafted web site, which allows them to test for files on disk; user interaction is required and no authentication is needed.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:11:29Z"},"cvss":{"score":6.5,"severity":"MEDIUM","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.18069,"percentile":0.97184,"date":"2026-10-28","provenance":"source"},"kev":{"dateAdded":"2022-05-24","dueDate":"2022-06-14","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2017-0022","provenance":"source"},"vulncheckKev":{"dateAdded":"2017-03-14","exploitedFirstSeen":"2017-03-14","ransomware":false,"evidence":[{"url":"https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2017-Mar","date":"2017-03-14"},{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2017-03-14"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-05-24"}],"evidenceTotal":3,"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-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"},{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"references":[{"url":"http://www.securityfocus.com/bid/96069","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1038014","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://0patch.blogspot.com/2017/09/exploit-kit-rendezvous-and-cve-2017-0022.html","tags":["Exploit"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0022","tags":["Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/96069","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1038014","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://0patch.blogspot.com/2017/09/exploit-kit-rendezvous-and-cve-2017-0022.html","tags":["Exploit"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0022","tags":["Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-0022","tags":["US Government Resource"]}],"techniques":[{"id":"T1189","name":"Drive-by Compromise","tactics":["initial-access"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve","ai-mapping"],"basisDetail":"CTID attack_to_cve (Phase 1); claude-haiku-5-5: Victim visits attacker-crafted website triggers exploit","mappingType":"uncategorized","evidence":[{"from":"description","quote":"allowing attackers to test for files on disk via a crafted web site","start":266,"end":333}],"confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1518.001","name":"Security Software Discovery","tactics":["discovery"],"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":"T1005","name":"Data from Local System","tactics":["collection"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Probes for existence of files on disk","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allowing attackers to test for files on disk via a crafted web site","start":266,"end":333}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2017-0389","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-0389","exploited":true,"exploitedSince":"2022-05-24","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":["https://0patch.blogspot.com/2017/09/exploit-kit-rendezvous-and-cve-2017-0022.html"],"flow":[{"stage":"primary","techniques":["T1005"],"provenance":"ai"},{"stage":"related","techniques":["T1189"],"provenance":"source"},{"stage":"related","techniques":["T1518.001"],"provenance":"source","lowConfidence":true}],"timeline":[{"date":"2017-03-14","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2017-Mar","provenance":"source"},{"date":"2017-03-17","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-0022","provenance":"source"},{"date":"2022-05-24","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2022-05-24","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-0389","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":1894},"priority":{"score":67.0,"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 3516 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.44,"detail":"percentile 0.9718"},{"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":4.55,"detail":"base score 6.5"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}