{"id":"CVE-2026-87301","kind":"vulnerability","aliases":["CVE-2026-87301"],"related":[],"title":"Oracle VirtualBox: local low-privilege user can read data and crash host","description":"Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core).   The supported version that is affected is 7.2.16. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox.  While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Oracle VM VirtualBox accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle VM VirtualBox. CVSS 3.1 Base Score 8.4 (Confidentiality and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H).","summary":"A flaw in the Core component of Oracle VM VirtualBox lets a low-privileged user who can log on to the machine running VirtualBox compromise it. The sources say an attacker can read data VirtualBox can access and cause a hang or repeatable crash.","severity":"high","cvss":8.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["hypervisor-hosts","infrastructure","virtualbox"],"not_affected_if":["no-untrusted-local-logon"],"how_to_check":"- Check the installed release with `VBoxManage --version`; the sources list `7.2.16` as the affected version.","fix":null,"status":"open","published_at":"2026-10-20T22:20:07+00:00","first_seen_at":"2026-10-23T21:57:25+00:00","triaged_at":"2026-10-25T03:01:54+00:00","updated_at":"2026-10-25T03:01:54+00:00","category":"infrastructure","confidence":0.7,"triage":{"at":"2026-10-25T03:01:54Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Oracle VirtualBox: local low-privilege user can read data and crash host","impact":"high","summary":"A flaw in the Core component of Oracle VM VirtualBox lets a low-privileged user who can log on to the machine running VirtualBox compromise it. The sources say an attacker can read data VirtualBox can access and cause a hang or repeatable crash.","category":"infrastructure","nicknames":[],"who_cares":["virtualbox","hypervisor-hosts"],"confidence":0.7,"needs_auth":"yes","worst_case":"Low-privileged local user reads VirtualBox data and crashes it","analyst_note":"","how_to_check":"- Check the installed release with `VBoxManage --version`; the sources list `7.2.16` as the affected version.","needs_analyst":false,"not_affected_if":["no-untrusted-local-logon"],"who_is_affected":"Teams running Oracle VM VirtualBox on hosts where other low-privileged users can log on are the ones exposed. The sources do not say which VirtualBox releases beyond 7.2.16 are affected or which fixed release to move to. Hosts where only trusted administrators can log on are less exposed.","user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.001077,"input_tokens":3556,"output_tokens":1443,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-2026':15A,18A '-87301':16A,19A '/av':181C '3.1':169C,180C '7.2.16':89C '8.4':172C 'abil':153C 'access':62B,137C,143C,149C 'addit':124C 'affect':87C 'allow':93C 'attack':56B,96C,120C,129C 'avail':175C 'base':170C 'c/c':186C 'caus':64B,155C 'chang':127C 'complet':142C,162C 'compon':30B,80C 'compromis':50B,108C 'confidenti':173C 'core':29B,81C 'crash':12A,69B,161C 'critic':139C 'cve':14A,17A 'cvss':168C,177C,179C 'data':10A,59B,140C,150C 'dos':163C 'easili':90C 'execut':106C 'exploit':91C 'flaw':26B 'frequent':159C 'h':189C 'h/i':187C 'hang':66B,157C 'host':13A,22B 'hypervisor':21B 'hypervisor-host':20B 'impact':123C,176C 'infrastructur':23B,101C 'l/ac':182C 'l/pr':183C 'l/ui':184C 'let':35B 'local':3A 'log':43B 'logon':98C 'low':5A,38B,94C 'low-privileg':4A,37B 'machin':47B 'may':121C 'n/a':188C 'n/s':185C 'oracl':1A,32B,73C,78C,103C,109C,117C,146C,165C 'privileg':6A,39B,95C 'product':76C,125C 'read':9A,58B 'repeat':68B,160C 'result':134C 'run':48B 'say':54B 'scope':126C 'score':171C 'signific':122C 'sourc':53B 'success':128C 'support':83C 'unauthor':136C,152C 'user':7A,40B 'vector':178C 'version':84C 'virtual':79C 'virtualbox':2A,24B,34B,49B,60B,75C,105C,111C,119C,148C,167C 'vm':33B,74C,104C,110C,118C,147C,166C 'vulner':70C,92C,114C,132C","nicknames":[],"mitigations":[],"who_affected":"Teams running Oracle VM VirtualBox on hosts where other low-privileged users can log on are the ones exposed. The sources do not say which VirtualBox releases beyond 7.2.16 are affected or which fixed release to move to. Hosts where only trusted administrators can log on are less exposed.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:20:07+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-87301","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-87301","severity":null,"published_at":"2026-10-20T22:20:07+00:00","modified_at":"2026-10-21T18:44:19+00:00","first_seen_at":"2026-10-23T21:57:25+00:00","fetched_at":"2026-10-23T22:29:00+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"}