References https://xenbits.xen.org/xsa/ https://xenproject.org/about/security-policy/ https://www.cvedetails.com/product/23463/XEN-XEN.html?vendor_id=6276 https://www.cnvd.org.cn/flaw/show/CNVD-2020-53819 https://www.anquanke.com/post/id/307977 https://xenbits.xen.org/xsa/advisory-466.html https://nvd.nist.gov/vuln/detail/CVE-2025-27466 https://support.citrix.com/external/article/CTX696527/xenserver-security-update-for-multiple-i.html https://www.qubes-os.org/security/xsa/ https://www.cnvd.org.cn/flaw/show/CNVD-2017-28630