{"id":"CVE-2026-101598","kind":"vulnerability","aliases":["CVE-2026-101598"],"related":[],"title":"Oracle VirtualBox: low-privilege local user can take over VirtualBox","description":"Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core).   The supported version that is affected is 7.2.20. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox.  Successful attacks of this vulnerability can result in takeover of Oracle VM VirtualBox. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).","summary":"A flaw in the Core component of Oracle VM VirtualBox lets a low-privileged user who can log on to the host compromise VirtualBox. The advisory says a successful attack can result in full takeover of VirtualBox, with high impact to confidentiality, integrity and availability.","severity":"high","cvss":7.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["desktop-virtualization","hypervisor","infrastructure","virtualbox"],"not_affected_if":[],"how_to_check":"- Confirm whether the installed VirtualBox is `7.2.20`, the version the advisory names as affected.\n- unknown","fix":"- Upgrade VirtualBox to a release newer than `7.2.20`; the sources do not name the fixed version.\n- unknown","status":"open","published_at":"2026-10-20T22:18:13+00:00","first_seen_at":"2026-10-23T21:57:22+00:00","triaged_at":"2026-10-25T03:10:02+00:00","updated_at":"2026-10-25T03:10:02+00:00","category":"infrastructure","confidence":0.7,"triage":{"at":"2026-10-25T03:10:02Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade VirtualBox to a release newer than `7.2.20`; the sources do not name the fixed version.\n- unknown","reach":"local","title":"Oracle VirtualBox: low-privilege local user can take over VirtualBox","impact":"high","summary":"A flaw in the Core component of Oracle VM VirtualBox lets a low-privileged user who can log on to the host compromise VirtualBox. The advisory says a successful attack can result in full takeover of VirtualBox, with high impact to confidentiality, integrity and availability.","category":"infrastructure","nicknames":[],"who_cares":["virtualbox","hypervisor","desktop-virtualization"],"confidence":0.7,"needs_auth":"yes","worst_case":"Attacker with local logon takes over VirtualBox, full compromise","analyst_note":"","how_to_check":"- Confirm whether the installed VirtualBox is `7.2.20`, the version the advisory names as affected.\n- unknown","needs_analyst":false,"not_affected_if":[],"who_is_affected":"Hosts running Oracle VM VirtualBox `7.2.20` where people or processes have a logon on the machine can exploit this flaw. The sources do not describe a specific configuration, so any host with VirtualBox at the affected version should be checked. unknown","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.001015,"input_tokens":3460,"output_tokens":1338,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-101598':14A,17A '-2026':13A,16A '/av':139C '3.1':126C,138C '7.2.20':89C '7.8':129C 'advisori':50B 'affect':87C 'allow':93C 'attack':54B,96C,113C 'avail':69B,133C 'base':127C 'compon':29B,80C 'compromis':47B,108C 'confidenti':66B,130C 'core':28B,81C 'cve':12A,15A 'cvss':125C,135C,137C 'desktop':19B 'desktop-virtu':18B 'easili':90C 'execut':106C 'exploit':91C 'flaw':25B 'full':58B 'h':147C 'h/a':146C 'h/i':145C 'high':63B 'host':46B 'hypervisor':21B 'impact':64B,134C 'infrastructur':22B,101C 'integr':67B,131C 'l/ac':140C 'l/pr':141C 'l/ui':142C 'let':34B 'local':6A 'log':42B 'logon':98C 'low':4A,37B,94C 'low-privileg':3A,36B 'n/s':143C 'oracl':1A,31B,73C,78C,103C,109C,122C 'privileg':5A,38B,95C 'product':76C 'result':56B,118C 'say':51B 'score':128C 'success':53B,112C 'support':83C 'take':9A 'takeov':59B,120C 'u/c':144C 'user':7A,39B 'vector':136C 'version':84C 'virtual':20B,79C 'virtualbox':2A,11A,23B,33B,48B,61B,75C,105C,111C,124C 'vm':32B,74C,104C,110C,123C 'vulner':70C,92C,116C","nicknames":[],"mitigations":[],"who_affected":"Hosts running Oracle VM VirtualBox `7.2.20` where people or processes have a logon on the machine can exploit this flaw. The sources do not describe a specific configuration, so any host with VirtualBox at the affected version should be checked. unknown","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:18:13+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-101598","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101598","severity":null,"published_at":"2026-10-20T22:18:13+00:00","modified_at":"2026-10-21T18:43:53+00:00","first_seen_at":"2026-10-23T21:57:22+00:00","fetched_at":"2026-10-23T22:28:58+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}