CVE-2026-21956

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{}

{"analysis": {"en": {"generated_at": "2026-04-18T15:38:55.076119+00:00", "value": {"mitigation_remediation": ["Apply the official patch or upgrade to a non\u2011affected VirtualBox release as described in Oracle\u2019s January\u202f2026 security advisory.", "Restrict local accounts that run VirtualBox by enforcing the principle of least privilege and limiting unnecessary administrative rights.", "Monitor host resource usage and audit VirtualBox logs for abnormal activity; disable VirtualBox services if they are not essential for business operations."], "summary": {"action": "Urgent Patch", "impact": "Privilege Escalation Leading to Full Host Compromise"}, "threat_synthesis": {"affected_systems": "Oracle VM VirtualBox versions 7.1.14 and 7.2.4 from Oracle Corporation are affected. The Core component in these releases contains the vulnerability.", "description_and_impact": "The flaw exists in Oracle VM VirtualBox\u2019s Core component and allows an attacker with high privileges who has logged into the host to compromise VirtualBox. Successful exploitation can grant the attacker control over VirtualBox, effectively leading to a takeover of the host, affecting confidentiality, integrity, and availability.", "risk_and_exploitability": "The CVSS v3.1 score of 8.2 classifies the issue as high severity. The attack vector is local with high privilege; an attacker already needs local access to the host. The EPSS probability is below 1\u202f%, indicating that widescale exploitation has not been observed, yet the potential for full host compromise drives a high impact rating. The vulnerability is not yet listed in the KEV catalog, but the severity and the control it grants warrant prompt action."}}}}, "created": "2026-04-18T15:45:04.273150+00:00", "title": "VirtualBox Core Privilege Escalation Enables Full Host Compromise", "updated": "2026-04-18T15:45:04.273162+00:00", "vendors": []}