{"alias":[],"description":"The x86_decode_insn function in arch\/x86\/kvm\/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a ModR\/M byte in an undefined instruction.","epss":{"percentile":"0.08892","score":"0.000310"},"id":"CVE-2016-8630","metrics":{"cvss2":{"ac_insuf_info":0,"access_complexity":"LOW","access_vector":"LOCAL","authentication":"NONE","availability_impact":"COMPLETE","base_score":4.9,"base_severity":"MEDIUM","confidentiality_impact":"NONE","exploitability_score":3.9,"impact_score":6.9,"integrity_impact":"NONE","obtain_all_privilege":0,"obtain_other_privilege":0,"obtain_user_privilege":0,"user_interaction_required":0,"vector_string":"AV:L\/AC:L\/Au:N\/C:N\/I:N\/A:C","version":"2.0"},"cvss3":{"attack_complexity":"LOW","attack_vector":"LOCAL","availability_impact":"HIGH","base_score":5.5,"base_severity":"MEDIUM","confidentiality_impact":"NONE","exploitability_score":1.8,"impact_score":3.6,"integrity_impact":"NONE","privileges_required":"LOW","scope":"UNCHANGED","user_interaction":"NONE","vector_string":"CVSS:3.0\/AV:L\/AC:L\/PR:L\/UI:N\/S:U\/C:N\/I:N\/A:H","version":"3.0"}},"modified":"2026-05-06T22:30:45","nvd_status":"Modified","published":"2016-11-28T03:59:03","score":5.5,"severity":"MEDIUM","source":"secalert@redhat.com","status":"PUBLISHED","weaknesses":[{"id":"CWE-284","name":"Improper Access Control","type":"weakness"},{"id":"CWE-476","name":"NULL Pointer Dereference","type":"weakness"}]}