CVE-2026-21982

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{"analysis": {"en": {"generated_at": "2026-04-18T04:22:51.255380+00:00", "value": {"mitigation_remediation": ["Apply Oracle VM VirtualBox version 7.1.15 or later, or 7.2.5 or later, which contain the fix for the access\u2011control vulnerability.", "If an immediate patch is unavailable, isolate the host machine from the physical communication segment to which VirtualBox is attached, effectively preventing physical\u2011segment attackers from accessing the environment.", "Enforce strict privilege controls so that only authorised users can start or manage VirtualBox processes, reducing the likelihood of an unauthenticated attacker gaining a foothold."], "summary": {"action": "Patch", "impact": "Full takeover of Oracle VM VirtualBox leading to compromise of host system"}, "threat_synthesis": {"affected_systems": "Affected products include Oracle Corporation\u2019s Oracle VM VirtualBox versions 7.1.14 and 7.2.4. The vulnerability resides in the Core component of these releases and can affect any system running VirtualBox on those versions.", "description_and_impact": "Oracle VM VirtualBox\u2019s Core component contains an Access Control flaw that allows an unauthenticated attacker with physical access to the communication segment connected to the host machine to compromise VirtualBox. The vulnerability can result in a complete takeover of the VirtualBox instance, exposing the host\u2019s data, altering system integrity, and potentially disrupting availability. It is classified as CWE\u2011284 and has a CVSS v3.1 base score of 7.5, indicating a high impact if successfully exploited.", "risk_and_exploitability": "The risk of exploitation is moderate due to the threat requiring physical access to the host\u2019s communication segment, as indicated by the attack vector AV:A. While the EPSS score is below 1\u202f% and the flaw is not listed in the CISA KEV catalog, the high CVSS score and the potential for a full takeover make timely remediation essential. Attackers would need to supply a specialized payload that exploits the access control bypass to gain control over VirtualBox, after which they could create or modify guest VMs, access sensitive data, or disrupt host operations."}}}}, "created": "2026-04-18T04:30:35.826225+00:00", "title": "Access Control Vulnerability in Oracle VM VirtualBox Allows Full System Compromise", "updated": "2026-04-18T04:30:35.826242+00:00", "vendors": []}