{"api_version":"1","generated_at":"2026-07-23T11:33:25+00:00","cve":"CVE-2026-46131","urls":{"html":"https://cve.report/CVE-2026-46131","api":"https://cve.report/api/cve/CVE-2026-46131.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46131","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46131"},"summary":{"title":"KVM: x86: check for nEPT/nNPT in slow flush hypercalls","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: check for nEPT/nNPT in slow flush hypercalls\n\nChecking is_guest_mode(vcpu) is incorrect, because translate_nested_gpa()\nis only valid if an L2 guest is running *with nested EPT/NPT enabled*.\nInstead use the same condition as translate_nested_gpa() itself.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-28 10:16:28","updated_at":"2026-06-24 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x86: check for nEPT/nNPT in slow flush hypercalls","CVE":"CVE-2026-46131","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46131","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: check for nEPT/nNPT in slow flush hypercalls\n\nChecking is_guest_mode(vcpu) is incorrect, because translate_nested_gpa()\nis only valid if an L2 guest is running *with nested EPT/NPT enabled*.\nInstead use the same condition as translate_nested_gpa() itself.","Type":"Description","Title":"KVM: x86: check for nEPT/nNPT in slow flush hypercalls"}]}}}