[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fc9QluDxPopqmwNz_CSTHOE5JEchTjVIQekWSUnpw2d8":3,"g5a-risk:CVE-2021-40444":238},{"success":4,"data":5,"meta":236},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":50,"epssPercentile":27,"epssTimeSeries":51,"severity":53,"affectedProducts":54,"affectedProductsCount":112,"references":113,"referencesCount":142,"weaknesses":143,"weaknessesCount":152,"isActivelyExploited":4,"cisaInfo":153,"otxData":27,"relatedBlogPosts":155,"seoMetadata":156,"configurations":181,"relatedVendorCves":234,"notableEvents":235},"CVE-2021-40444","What is CVE-2021-40444?","Microsoft is investigating reports of a remote code execution vulnerability in MSHTML that affects Microsoft Windows. Microsoft is aware of targeted attacks that attempt to exploit this vulnerability by using specially-crafted Microsoft Office documents.\nAn attacker could craft a malicious ActiveX control to be used by a Microsoft Office document that hosts the browser rendering engine. The attacker would then have to convince the user to open the malicious document. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\nMicrosoft Defender Antivirus and Microsoft Defender for Endpoint both provide detection and protections for the known vulnerability. Customers should keep antimalware products up to date. Customers who utilize automatic updates do not need to take additional action. Enterprise customers who manage updates should select the detection build 1.349.22.0 or newer and deploy it across their environments. Microsoft Defender for Endpoint alerts will be displayed as: “Suspicious Cpl File Execution”.\nUpon completion of this investigation, Microsoft will take the appropriate action to help protect our customers. This may include providing a security update through our monthly release process or providing an out-of-cycle security update, depending on customer needs.\nPlease see the Mitigations and Workaround sections for important information about steps you can take to protect your system from this vulnerability.\nUPDATE September 14, 2021: Microsoft has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. Please see the FAQ for important information about which updates are applicable to your system.","Microsoft is investigating reports of a remote code execution vulnerability in MSHTML that affects Microsoft Windows. Microsoft is aware of targeted attacks ...","2021-09-15T12:15:16.467","2025-04-04T20:46:47.36",8.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:R\u002FS:C\u002FC:L\u002FI:H\u002FA:L",{"CVSSMetricV31":15,"CVSSMetricV30":27,"CVSSMetricV2":39,"CVSSMetricV40":27},[16,30],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":28,"ImpactScore":29},"secure@microsoft.com","Secondary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":22,"IntegrityImpact":26,"AvailabilityImpact":22,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":22,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"3.1","NETWORK","LOW","NONE","REQUIRED","CHANGED","HIGH",null,2.8,5.3,{"Source":31,"Type":18,"CVSSData":32,"ExploitabilityScore":37,"ImpactScore":38},"nvd@nist.gov",{"Version":20,"VectorString":33,"AttackVector":34,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":24,"Scope":35,"ConfidentialityImpact":26,"IntegrityImpact":26,"AvailabilityImpact":26,"BaseScore":36,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":26,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"CVSS:3.1\u002FAV:L\u002FAC:L\u002FPR:N\u002FUI:R\u002FS:U\u002FC:H\u002FI:H\u002FA:H","LOCAL","UNCHANGED",7.8,1.8,5.9,[40],{"Source":31,"Type":41,"CVSSData":42,"BaseSeverity":45,"ExploitabilityScore":48,"ImpactScore":49,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":4},"Primary",{"Version":43,"VectorString":44,"AccessVector":21,"AccessComplexity":45,"Authentication":23,"ConfidentialityImpact":46,"IntegrityImpact":46,"AvailabilityImpact":46,"BaseScore":47,"BaseSeverity":27,"Exploitability":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"CollateralDamagePotential":27,"TargetDistribution":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":27,"EnvironmentalScore":27},"2.0","AV:N\u002FAC:M\u002FAu:N\u002FC:P\u002FI:P\u002FA:P","MEDIUM","PARTIAL",6.8,8.6,6.4,0.9784,[52,52,52,52,50,50,50],0.9745,"High",[55,60,63,66,69,72,75,78,82,85,88,91,94,97,100,103,106,109],{"vendor":56,"product":57,"version":58,"criteria":59,"vulnerable":4},"microsoft","windows_10_1507","*","cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*",{"vendor":56,"product":61,"version":58,"criteria":62,"vulnerable":4},"windows_10_1607","cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*",{"vendor":56,"product":64,"version":58,"criteria":65,"vulnerable":4},"windows_10_1809","cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*",{"vendor":56,"product":67,"version":58,"criteria":68,"vulnerable":4},"windows_10_1909","cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*",{"vendor":56,"product":70,"version":58,"criteria":71,"vulnerable":4},"windows_10_2004","cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*",{"vendor":56,"product":73,"version":58,"criteria":74,"vulnerable":4},"windows_10_20h2","cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*",{"vendor":56,"product":76,"version":58,"criteria":77,"vulnerable":4},"windows_10_21h1","cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*",{"vendor":56,"product":79,"version":80,"criteria":81,"vulnerable":4},"windows_7","-","cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*",{"vendor":56,"product":83,"version":80,"criteria":84,"vulnerable":4},"windows_8.1","cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*",{"vendor":56,"product":86,"version":80,"criteria":87,"vulnerable":4},"windows_rt_8.1","cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*",{"vendor":56,"product":89,"version":58,"criteria":90,"vulnerable":4},"windows_server_2004","cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*",{"vendor":56,"product":92,"version":80,"criteria":93,"vulnerable":4},"windows_server_2008","cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*",{"vendor":56,"product":92,"version":95,"criteria":96,"vulnerable":4},"r2","cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*",{"vendor":56,"product":98,"version":80,"criteria":99,"vulnerable":4},"windows_server_2012","cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*",{"vendor":56,"product":101,"version":58,"criteria":102,"vulnerable":4},"windows_server_2016","cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*",{"vendor":56,"product":104,"version":58,"criteria":105,"vulnerable":4},"windows_server_2019","cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*",{"vendor":56,"product":107,"version":58,"criteria":108,"vulnerable":4},"windows_server_2022","cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*",{"vendor":56,"product":110,"version":58,"criteria":111,"vulnerable":4},"windows_server_20h2","cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*",18,[114,120,124,127,134,136,138,140],{"url":115,"source":116,"tags":117},"http:\u002F\u002Fpacketstormsecurity.com\u002Ffiles\u002F164210\u002FMicrosoft-Windows-MSHTML-Overview.html","Packetstormsecurity",[118,119],"Third Party Advisory","VDB Entry",{"url":121,"source":116,"tags":122},"http:\u002F\u002Fpacketstormsecurity.com\u002Ffiles\u002F165214\u002FMicrosoft-Office-Word-MSHTML-Remote-Code-Execution.html",[123,118,119],"Exploit",{"url":125,"source":116,"tags":126},"http:\u002F\u002Fpacketstormsecurity.com\u002Ffiles\u002F167317\u002FMicrosoft-Office-MSDT-Follina-Proof-Of-Concept.html",[123,118,119],{"url":128,"source":129,"tags":130},"https:\u002F\u002Fportal.msrc.microsoft.com\u002Fen-US\u002Fsecurity-guidance\u002Fadvisory\u002FCVE-2021-40444","Microsoft",[131,132,133],"Mitigation","Patch","Vendor Advisory",{"url":115,"source":116,"tags":135},[118,119],{"url":121,"source":116,"tags":137},[123,118,119],{"url":125,"source":116,"tags":139},[123,118,119],{"url":128,"source":129,"tags":141},[131,132,133],8,[144],{"id":145,"name":146,"description":147,"extendedDescription":148,"status":149,"abstraction":150,"structure":151},"CWE-22","Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.","Many file operations are intended to take place within a restricted directory. By using special elements such as \"..\" and \"\u002F\" separators, attackers can escape outside of the restricted location to access files or directories that are elsewhere on the system. One of the most common special elements is the \"..\u002F\" sequence, which in most modern operating systems is interpreted as the parent directory of the current location. This is referred to as relative path traversal. Path traversal also covers the use of absolute pathnames such as \"\u002Fusr\u002Flocal\u002Fbin\" to access unexpected files. This is referred to as absolute path traversal.","Stable","Base","Simple",1,{"shortDescription":154,"requiredAction":154,"vulnerabilityName":154,"dateAdded":27},"",[],{"title":157,"metaDescription":158,"keywords":159,"canonicalUrl":160,"structuredData":161},"What is CVE-2021-40444? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-40444, a high severity cyber security vulnerability from 2021. High exploit probability (97.8%). Microsoft is investigatin...","CVE-2021-40444, CVE-2021-40444 vulnerability, CVE-2021-40444 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2021, CVSS score, exploit, patch, remediation, microsoft security, windows_10_1507 vulnerability, windows_10_1607 vulnerability, windows_10_1809 vulnerability, windows_10_1909 vulnerability, windows_10_2004 vulnerability, high risk vulnerability, actively exploited","\u002Fwhat-is\u002Fcve-2021-40444",{"@context":162,"@type":163,"headline":157,"description":158,"datePublished":10,"dateModified":11,"author":164,"publisher":168,"about":172,"mainEntityOfPage":176,"articleSection":179,"keywords":180},"https:\u002F\u002Fschema.org","TechArticle",{"@type":165,"name":166,"url":167},"Organization","Precursor 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research",[182],{"Operator":27,"Negate":27,"Nodes":183},[184],{"Operator":185,"Negate":27,"CPEMatch":186},"OR",[187,190,193,196,199,202,205,208,210,212,214,216,218,220,222,225,227,229,232],{"Vulnerable":4,"Criteria":59,"MatchCriteriaID":188,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":189,"VersionEndIncluding":27},"C1658517-428C-4FAF-8EEE-3FD68557AAD1","10.0.10240.19060",{"Vulnerable":4,"Criteria":62,"MatchCriteriaID":191,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":192,"VersionEndIncluding":27},"4BF6C51E-7240-457D-A36C-5494AEE41AB1","10.0.14393.4651",{"Vulnerable":4,"Criteria":65,"MatchCriteriaID":194,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":195,"VersionEndIncluding":27},"1673EF18-FB21-450C-B75D-89279B6779FA","10.0.17763.2183",{"Vulnerable":4,"Criteria":68,"MatchCriteriaID":197,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":198,"VersionEndIncluding":27},"F3F77B0B-2A62-4E21-B042-BB86ABA68BE3","10.0.18363.1801",{"Vulnerable":4,"Criteria":71,"MatchCriteriaID":200,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":201,"VersionEndIncluding":27},"F4E719E7-7D50-49F6-ABD4-77B1F7ECC68C","10.0.19041.1237",{"Vulnerable":4,"Criteria":74,"MatchCriteriaID":203,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":204,"VersionEndIncluding":27},"71B3072F-0DB3-4C23-AD96-62BF71345E61","10.0.19042.1237",{"Vulnerable":4,"Criteria":77,"MatchCriteriaID":206,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":207,"VersionEndIncluding":27},"CB038EC1-8E36-48C1-8E2E-3B8B6585D25E","10.0.19043.1237",{"Vulnerable":4,"Criteria":81,"MatchCriteriaID":209,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"C2B1C231-DE19-4B8F-A4AA-5B3A65276E46",{"Vulnerable":4,"Criteria":84,"MatchCriteriaID":211,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"E93068DB-549B-45AB-8E5C-00EB5D8B5CF8",{"Vulnerable":4,"Criteria":87,"MatchCriteriaID":213,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"C6CE5198-C498-4672-AF4C-77AB4BE06C5C",{"Vulnerable":4,"Criteria":90,"MatchCriteriaID":215,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":201,"VersionEndIncluding":27},"046119DC-43BF-4077-9721-12E2EFD7F492",{"Vulnerable":4,"Criteria":93,"MatchCriteriaID":217,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"5F422A8C-2C4E-42C8-B420-E0728037E15C",{"Vulnerable":4,"Criteria":96,"MatchCriteriaID":219,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F",{"Vulnerable":4,"Criteria":99,"MatchCriteriaID":221,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"A7DF96F8-BA6A-4780-9CA3-F719B3F81074",{"Vulnerable":4,"Criteria":223,"MatchCriteriaID":224,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"cpe:2.3:o:microsoft:windows_server_2012:-:r2:*:*:*:*:*:*","5F2558DF-2D1F-46BA-ABF1-08522D33268E",{"Vulnerable":4,"Criteria":102,"MatchCriteriaID":226,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":192,"VersionEndIncluding":27},"EAF9D18C-B459-48F2-8451-20E7B04EAD36",{"Vulnerable":4,"Criteria":105,"MatchCriteriaID":228,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":195,"VersionEndIncluding":27},"8867C828-131C-466E-9A35-80184659D540",{"Vulnerable":4,"Criteria":108,"MatchCriteriaID":230,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":231,"VersionEndIncluding":27},"0663409D-4AE8-4BD9-85FE-9EAED15AE9DB","10.0.20348.230",{"Vulnerable":4,"Criteria":111,"MatchCriteriaID":233,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":204,"VersionEndIncluding":27},"292B87C7-3AC9-48FF-91D7-21D6D74C84A9",[],[],{"lastModified":11,"cacheTime":237,"version":43},1792252408512,{"score":239,"band":53,"action":240,"scoredAt":241},79,"Emergency 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