[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fAtDnhz4Q7gdMPBNXkYVSIYpgMmKt9gSf0TY2Z-GSdrs":3},{"success":4,"data":5},true,{"vendor":6,"topVulnerabilitiesByEpss":39,"kevVulnerabilities":98,"topProductsByCves":99,"seoMetadata":105,"meta":114},{"vendorId":7,"vendorName":8,"productCount":9,"cveCount":10,"kevCount":11,"versionCount":12,"lastCveUpdate":13,"firstLetter":14,"products":15,"description":38},35953,"xen",5,476,0,145,"2025-09-11","x",[16,20,26,30,34],{"id":17,"product_name":8,"version_count":18,"cve_count":19,"kev_count":11,"last_cve_update":13},173207,144,473,{"id":21,"product_name":22,"version_count":23,"cve_count":24,"kev_count":11,"last_cve_update":25},173206,"xapi",1,2,"2022-10-11",{"id":27,"product_name":28,"version_count":11,"cve_count":23,"kev_count":11,"last_cve_update":29},173205,"qemu","2007-03-20",{"id":31,"product_name":32,"version_count":11,"cve_count":23,"kev_count":11,"last_cve_update":33},173208,"xen_flask_module","2008-08-14",{"id":35,"product_name":36,"version_count":11,"cve_count":23,"kev_count":11,"last_cve_update":37},173209,"xen-unstable","2012-10-31","Xen is a technology vendor with 5 tracked products and 476 known security vulnerabilities. Get comprehensive security analysis, vulnerability tracking, and threat intelligence for this vendor.",[40,49,56,62,69,77,82,86,89,93],{"cveId":41,"description":42,"publishedDate":43,"cvssScore":44,"cvssVersion":45,"severity":46,"isKev":47,"epssScore":48},"CVE-2012-0217","The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix XenServer 6.0.2 and earlier and other products; Oracle Solaris 11 and earlier; illumos before r13724; Joyent SmartOS before 20120614T184600Z; FreeBSD before 9.0-RELEASE-p3; NetBSD 6.0 Beta and earlier; Microsoft Windows Server 2008 R2 and R2 SP1 and Windows 7 Gold and SP1; and possibly other operating systems, when running on an Intel processor, incorrectly uses the sysret path in cases where a certain address is not a canonical address, which allows local users to gain privileges via a crafted application.  NOTE: because this issue is due to incorrect use of the Intel specification, it should have been split into separate identifiers; however, there was some value in preserving the original mapping of the multi-codebase coordinated-disclosure effort to a single identifier.","2012-06-12",7.2,"v2","High",false,0.39835,{"cveId":50,"description":51,"publishedDate":52,"cvssScore":53,"cvssVersion":54,"severity":46,"isKev":47,"epssScore":55},"CVE-2018-8897","A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual (SDM) was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for #DB exceptions that are deferred by MOV SS or POP SS, as demonstrated by (for example) privilege escalation in Windows, macOS, some Xen configurations, or FreeBSD, or a Linux kernel crash. The MOV to SS and POP SS instructions inhibit interrupts (including NMIs), data breakpoints, and single step trap exceptions until the instruction boundary following the next instruction (SDM Vol. 3A; section 6.8.3). (The inhibited data breakpoints are those on memory accessed by the MOV to SS or POP to SS instruction itself.) Note that debug exceptions are not inhibited by the interrupt enable (EFLAGS.IF) system flag (SDM Vol. 3A; section 2.3). If the instruction following the MOV to SS or POP to SS instruction is an instruction like SYSCALL, SYSENTER, INT 3, etc. that transfers control to the operating system at CPL \u003C 3, the debug exception is delivered after the transfer to CPL \u003C 3 is complete. OS kernels may not expect this order of events and may therefore experience unexpected behavior when it occurs.","2018-05-08",7.8,"v3.0",0.18485,{"cveId":57,"description":58,"publishedDate":59,"cvssScore":60,"cvssVersion":45,"severity":46,"isKev":47,"epssScore":61},"CVE-2015-3456","The Floppy Disk Controller (FDC) in QEMU, as used in Xen 4.5.x and earlier and KVM, allows local guest users to cause a denial of service (out-of-bounds write and guest crash) or possibly execute arbitrary code via the (1) FD_CMD_READ_ID, (2) FD_CMD_DRIVE_SPECIFICATION_COMMAND, or other unspecified commands, aka VENOM.","2015-05-13",7.7,0.15275,{"cveId":63,"description":64,"publishedDate":65,"cvssScore":66,"cvssVersion":45,"severity":67,"isKev":47,"epssScore":68},"CVE-2015-5165","The C+ mode offload emulation in the RTL8139 network card device model in QEMU, as used in Xen 4.5.x and earlier, allows remote attackers to read process heap memory via unspecified vectors.","2015-08-12",9.3,"Critical",0.13288,{"cveId":70,"description":71,"publishedDate":72,"cvssScore":73,"cvssVersion":74,"severity":75,"isKev":47,"epssScore":76},"CVE-2023-20588","\nA division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality. \n\n\n\n\n\n\n\n","2023-08-08",5.5,"v3.1","Medium",0.11151,{"cveId":78,"description":79,"publishedDate":80,"cvssScore":73,"cvssVersion":74,"severity":75,"isKev":47,"epssScore":81},"CVE-2022-21123","Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.","2022-06-15",0.0687,{"cveId":83,"description":84,"publishedDate":80,"cvssScore":73,"cvssVersion":74,"severity":75,"isKev":47,"epssScore":85},"CVE-2022-21125","Incomplete cleanup of microarchitectural fill buffers on some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.",0.06451,{"cveId":87,"description":88,"publishedDate":80,"cvssScore":73,"cvssVersion":74,"severity":75,"isKev":47,"epssScore":85},"CVE-2022-21166","Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.",{"cveId":90,"description":91,"publishedDate":80,"cvssScore":73,"cvssVersion":74,"severity":75,"isKev":47,"epssScore":92},"CVE-2022-21127","Incomplete cleanup in specific special register read operations for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.",0.0551,{"cveId":94,"description":95,"publishedDate":96,"cvssScore":73,"cvssVersion":74,"severity":75,"isKev":47,"epssScore":97},"CVE-2023-20593","An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information.","2023-07-24",0.05188,[],[100,101,102,103,104],{"id":17,"product_name":8,"version_count":18,"cve_count":19,"kev_count":11,"last_cve_update":13},{"id":21,"product_name":22,"version_count":23,"cve_count":24,"kev_count":11,"last_cve_update":25},{"id":27,"product_name":28,"version_count":11,"cve_count":23,"kev_count":11,"last_cve_update":29},{"id":31,"product_name":32,"version_count":11,"cve_count":23,"kev_count":11,"last_cve_update":33},{"id":35,"product_name":36,"version_count":11,"cve_count":23,"kev_count":11,"last_cve_update":37},{"title":106,"metaDescription":107,"keywords":108,"structuredData":109},"Xen - Security Vulnerabilities & Analysis | Precursor Intelligence","Comprehensive security analysis for Xen covering 5 products with 476 tracked vulnerabilities. Real-time threat intelligence, CVE tracking, and security recommendations.","Xen vulnerabilities, Xen security, Xen CVE, Xen threat intelligence, vendor security analysis, cybersecurity threats, vulnerability management, CVE tracking",{"@context":110,"@type":111,"name":112,"description":107,"url":113},"https:\u002F\u002Fschema.org","Organization","Xen","https:\u002F\u002Fprecursorintelligence.com\u002Fvendors\u002Fxen",{"totalProducts":9,"totalVulnerabilities":10,"kevVulnerabilities":11,"lastUpdated":13,"generatedAt":115,"apiVersion":116},"2026-10-16T23:04:07.786Z","3.0"]