[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fxxW7jGTlIgwBapHUs9UxsqiHhHBDu1FamVd6uIykIC8":3,"g5a-risk:CVE-2025-53770":179},{"success":4,"data":5,"meta":176},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":30,"epssPercentile":27,"epssTimeSeries":31,"severity":32,"affectedProducts":33,"affectedProductsCount":45,"references":46,"referencesCount":102,"weaknesses":103,"weaknessesCount":112,"isActivelyExploited":4,"cisaInfo":113,"otxData":27,"relatedBlogPosts":115,"seoMetadata":116,"configurations":141,"relatedVendorCves":154,"notableEvents":155},"CVE-2025-53770","What is CVE-2025-53770?","Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized attacker to execute code over a network.\nMicrosoft is aware that an exploit for CVE-2025-53770 exists in the wild.\nMicrosoft is preparing and fully testing a comprehensive update to address this vulnerability.  In the meantime, please make sure that the mitigation provided in this CVE documentation is in place so that you are protected from exploitation.","Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized attacker to execute code over a network. Microsoft is awa...","2025-07-20T01:15:30.777","2025-07-30T01:00:01.49",9.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":27,"CVSSMetricV2":27,"CVSSMetricV40":27},[16],{"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":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":25,"AvailabilityImpact":25,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":25,"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","UNCHANGED","HIGH","CRITICAL",null,3.9,5.9,0.99999,[30,30,30,30,30,30,30],"Critical",[34,39,42],{"vendor":35,"product":36,"version":37,"criteria":38,"vulnerable":4},"microsoft","sharepoint_server","*","cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*",{"vendor":35,"product":36,"version":40,"criteria":41,"vulnerable":4},"2016","cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*",{"vendor":35,"product":36,"version":43,"criteria":44,"vulnerable":4},"2019","cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*",3,[47,52,58,62,66,71,76,80,84,90,94,98],{"url":48,"source":49,"tags":50},"https:\u002F\u002Fmsrc.microsoft.com\u002Fupdate-guide\u002Fvulnerability\u002FCVE-2025-53770","Microsoft",[51],"Vendor Advisory",{"url":53,"source":54,"tags":55},"https:\u002F\u002Farstechnica.com\u002Fsecurity\u002F2025\u002F07\u002Fsharepoint-vulnerability-with-9-8-severity-rating-is-under-exploit-across-the-globe\u002F","Arstechnica",[56,57],"Exploit","Press\u002FMedia Coverage",{"url":59,"source":60,"tags":61},"https:\u002F\u002Fgithub.com\u002Fkaizensecurity\u002FCVE-2025-53770","GitHub",[56],{"url":63,"source":49,"tags":64},"https:\u002F\u002Fmsrc.microsoft.com\u002Fblog\u002F2025\u002F07\u002Fcustomer-guidance-for-sharepoint-vulnerability-cve-2025-53770\u002F",[65,51],"Mitigation",{"url":67,"source":68,"tags":69},"https:\u002F\u002Fnews.ycombinator.com\u002Fitem?id=44629710","Ycombinator",[70],"Issue Tracking",{"url":72,"source":73,"tags":74},"https:\u002F\u002Fresearch.eye.security\u002Fsharepoint-under-siege\u002F","Eye",[56,65,75],"Third Party Advisory",{"url":77,"source":78,"tags":79},"https:\u002F\u002Ftherecord.media\u002Fmicrosoft-sharepoint-zero-day-vulnerability-exploited-globally","Therecord",[57],{"url":81,"source":82,"tags":83},"https:\u002F\u002Fwww.bleepingcomputer.com\u002Fnews\u002Fmicrosoft\u002Fmicrosoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available\u002F","Bleepingcomputer",[57],{"url":85,"source":86,"tags":87},"https:\u002F\u002Fwww.cisa.gov\u002Fnews-events\u002Falerts\u002F2025\u002F07\u002F20\u002Fmicrosoft-releases-guidance-exploitation-sharepoint-vulnerability-cve-2025-53770","CISA",[88,75,89],"Mailing List","US Government Resource",{"url":91,"source":92,"tags":93},"https:\u002F\u002Fwww.darkreading.com\u002Fremote-workforce\u002Fmicrosoft-rushes-emergency-fix-exploited-sharepoint-toolshell-flaw","Darkreading",[57],{"url":95,"source":96,"tags":97},"https:\u002F\u002Fwww.forbes.com\u002Fsites\u002Fdaveywinder\u002F2025\u002F07\u002F20\u002Fmicrosoft-confirms-ongoing-mass-sharepoint-attack---no-patch-available\u002F","Forbes",[57],{"url":99,"source":100,"tags":101},"https:\u002F\u002Fx.com\u002FShadowserver\u002Fstatus\u002F1946900837306868163","X",[75],12,[104],{"id":105,"name":106,"description":107,"extendedDescription":108,"status":109,"abstraction":110,"structure":111},"CWE-502","Deserialization of Untrusted Data","The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid.","It is often convenient to serialize objects for communication or to save them for later use. However, deserialized data or code can often be modified without using the provided accessor functions if it does not use cryptography to protect itself. Furthermore, any cryptography would still be client-side security -- which is a dangerous security assumption.\nData that is untrusted can not be trusted to be well-formed.\nWhen developers place no restrictions on \"gadget chains,\" or series of instances and method invocations that can self-execute during the deserialization process (i.e., before the object is returned to the caller), it is sometimes possible for attackers to leverage them to perform unauthorized actions, like generating a shell.","Draft","Base","Simple",1,{"shortDescription":114,"requiredAction":114,"vulnerabilityName":114,"dateAdded":27},"",[],{"title":117,"metaDescription":118,"keywords":119,"canonicalUrl":120,"structuredData":121},"What is CVE-2025-53770? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2025-53770, a critical severity cyber security vulnerability from 2025. High exploit probability (100.0%). Deserialization of u...","CVE-2025-53770, CVE-2025-53770 vulnerability, CVE-2025-53770 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2025, CVSS score, exploit, patch, remediation, microsoft security, sharepoint_server vulnerability, high risk vulnerability, actively exploited, exploit available","\u002Fwhat-is\u002Fcve-2025-53770",{"@context":122,"@type":123,"headline":117,"description":118,"datePublished":10,"dateModified":11,"author":124,"publisher":128,"about":132,"mainEntityOfPage":136,"articleSection":139,"keywords":140},"https:\u002F\u002Fschema.org","TechArticle",{"@type":125,"name":126,"url":127},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":125,"name":126,"url":127,"logo":129},{"@type":130,"url":131},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":133,"name":6,"description":134,"additionalType":135},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":137,"@id":138},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2025-53770","Cybersecurity","CVE-2025-53770, CVE-2025-53770 vulnerability, CVE-2025-53770 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[142],{"Operator":27,"Negate":27,"Nodes":143},[144],{"Operator":145,"Negate":27,"CPEMatch":146},"OR",[147,150,152],{"Vulnerable":4,"Criteria":38,"MatchCriteriaID":148,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":149,"VersionEndIncluding":27},"E1677A89-14A2-496E-A2EB-387B1BFE876C","16.0.18526.20508",{"Vulnerable":4,"Criteria":41,"MatchCriteriaID":151,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"F815EF1D-7B60-47BE-9AC2-2548F99F10E4",{"Vulnerable":4,"Criteria":44,"MatchCriteriaID":153,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"6122D014-5BF1-4AF4-8B4D-80205ED7785E",[],[156,163,170],{"id":157,"eventType":158,"eventTime":159,"details":160,"label":161,"color":162},"72275db8-f1de-4f4a-acd2-24c7aea49677","NEW_NVD","2025-07-20T04:01:02.23981+00:00","New CVE added to NVD","Published to NVD","blue",{"id":164,"eventType":165,"eventTime":166,"details":167,"label":168,"color":169},"a6f08cca-2ed2-4523-a95b-cdaf79c0bd02","NEW_CISA","2025-07-21T04:00:55.507616+00:00","CVE added to CISA Known Exploited Vulnerabilities","Added to CISA KEV","red",{"id":171,"eventType":172,"eventTime":173,"details":174,"label":175,"color":169},"2234d53c-12ce-42c8-b53e-fa304521221f","HIGH_EPSS_DELTA","2025-07-27T04:04:12.711812+00:00","Daily EPSS score increased by 0.164 on 2025-07-21","EPSS Score Increased",{"lastModified":11,"cacheTime":177,"version":178},1792326724448,"2.0",{"score":180,"band":32,"action":181,"scoredAt":182},90,"Emergency patch","2026-10-16T07:08:06.709308+00:00"]