[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f2cVXUjN3seqASNLB3R_LhCWSfaEvkIzQ764RZHV7bZs":3,"g5a-family:microsoft\u002Fapp_installer":58,"g5a-ex:microsoft\u002Fapp_installer@*":59},{"success":4,"data":5},true,{"product":6,"versions":15,"topVulnerabilitiesByEpss":16,"kevVulnerabilities":31,"seoMetadata":36,"meta":55},{"vendorName":7,"productName":8,"versionCount":9,"totalCves":10,"kevCount":11,"lastCveUpdate":12,"versions":13,"description":14},"microsoft","app_installer",0,2,1,"2024-08-13",[],"App Installer by Microsoft is a technology product and 2 known security vulnerabilities including 1 CISA Known Exploited Vulnerability. Get comprehensive security analysis, vulnerability tracking, and threat intelligence for this product.",[],[17,25],{"cveId":18,"description":19,"publishedDate":20,"cvssScore":21,"cvssVersion":22,"severity":23,"isKev":4,"epssScore":24},"CVE-2021-43890","We have investigated reports of a spoofing vulnerability in AppX installer that affects Microsoft Windows. Microsoft is aware of attacks that attempt to exploit this vulnerability by using specially crafted packages that include the malware family known as Emotet\u002FTrickbot\u002FBazaloader.\nAn attacker could craft a malicious attachment to be used in phishing campaigns. The attacker would then have to convince the user to open the specially crafted attachment. 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.\nPlease see the Security Updates table for the link to the updated app. Alternatively you can download and install the Installer using the links provided in the FAQ section.\nPlease see the Mitigations and Workaround sections for important information about steps you can take to protect your system from this vulnerability.\nDecember 27 2023 Update:\nIn recent months, Microsoft Threat Intelligence has seen an increase in activity from threat actors leveraging social engineering and phishing techniques to target Windows OS users and utilizing the ms-appinstaller URI scheme.\nTo address this increase in activity, we have updated the App Installer to disable the ms-appinstaller protocol by default and recommend other potential mitigations.\n","2021-12-15",7.1,"v3.1","High",0.11294,{"cveId":26,"description":27,"publishedDate":12,"cvssScore":28,"cvssVersion":22,"severity":23,"isKev":29,"epssScore":30},"CVE-2024-38177","Windows App Installer Spoofing Vulnerability",7.8,false,0.00856,[32],{"cveId":18,"description":19,"publishedDate":20,"cvssScore":21,"severity":23,"isKev":4,"epssScore":24,"cisaVulnName":33,"cisaDateAdded":20,"cisaShortDescription":34,"cisaRequiredAction":35},"Microsoft Windows AppX Installer Spoofing Vulnerability","Microsoft Windows AppX Installer contains a spoofing vulnerability which has a high impacts to confidentiality, integrity, and availability.","Apply updates per vendor instructions.",{"title":37,"metaDescription":38,"keywords":39,"structuredData":40},"App Installer by Microsoft - Security Vulnerabilities & Analysis | Precursor Intelligence","Comprehensive security analysis for App Installer by Microsoft with 2 tracked vulnerabilities including 0 critical and 1 high-severity issues and 1 CISA KEV vulnerability. Real-time threat intelligence, CVE tracking, and security recommendations.","App Installer vulnerabilities, App Installer security, App Installer CVE, Microsoft App Installer, App Installer threat intelligence, Microsoft security, product security analysis, cybersecurity threats, vulnerability management, CVE tracking, App Installer KEV, App Installer exploited vulnerabilities",{"@context":41,"@type":42,"name":43,"description":38,"url":44,"manufacturer":45,"applicationCategory":49,"softwareVersion":50,"mainEntity":51},"https:\u002F\u002Fschema.org","SoftwareApplication","App Installer","https:\u002F\u002Fprecursorintelligence.com\u002Fvulnerabilities\u002Ftechnologies\u002Fvendors\u002Fmicrosoft\u002Fapp_installer",{"@type":46,"name":47,"url":48},"Organization","Microsoft","https:\u002F\u002Fprecursorintelligence.com\u002Fvendors\u002Fmicrosoft","Security Software","Multiple versions",{"@type":52,"name":53,"description":54,"vulnerabilityCount":10,"dateModified":12},"SecurityVulnerability","App Installer Security Vulnerabilities","Security vulnerabilities affecting App Installer by Microsoft",{"totalVersions":9,"totalVulnerabilities":10,"kevVulnerabilities":11,"lastUpdated":12,"generatedAt":56,"apiVersion":57},"2026-10-18T22:15:04.741Z","3.0",[],{"rows":60,"total":11,"capped":29,"failed":9},[61],{"cveId":18,"name":33,"severity":23,"cvss":21,"added":20,"epss":24,"published":62,"ranges":63,"checked":4,"hits":66,"covers":29},"2021-12-15T15:15:11.207",[64,65],"before 1.16","before 1.11",[]]