CVE-2026-47044 in VirtualBox
Summary
by MITRE • 07/22/2026
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.12. 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 unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle VM VirtualBox. CVSS 3.1 Base Score 5.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
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Analysis
by VulDB Data Team • 07/22/2026
This vulnerability exists within Oracle VM VirtualBox version 7.2.12, specifically in the Core component of the Oracle Virtualization product suite. The flaw represents a significant security concern as it can be exploited by attackers with minimal privileges who already have access to the underlying infrastructure where VirtualBox operates. The vulnerability's classification as easily exploitable indicates that the attack vector requires little sophistication or specialized tools, making it particularly dangerous in environments where insider threats or compromised accounts exist.
The technical nature of this vulnerability manifests as a weakness that allows an authenticated attacker with low privileges to compromise the VirtualBox execution environment. This occurs through a mechanism that enables unauthorized manipulation of the virtualization core components, potentially leading to complete system denial of service conditions. The vulnerability specifically targets the availability aspect of the system's security posture, as demonstrated by the CVSS 3.1 Base Score of 5.5 which reflects high impact on availability metrics. The attack vector requires local access (AV:L) with low complexity (AC:L) and only low privilege requirements (PR:L), indicating that even users with basic system access can potentially trigger this flaw.
The operational impact of successfully exploiting this vulnerability is severe, as it allows attackers to cause either temporary hangs or frequent crashes that result in complete denial of service for the VirtualBox instance. This means that legitimate users may be unable to utilize virtualization services until the system is manually restarted or the underlying issue is resolved. In enterprise environments where VirtualBox serves as a critical component for development, testing, or production virtualization, such an attack could disrupt business operations and potentially compromise the availability of multiple virtual machines running on the affected host.
From a cybersecurity perspective, this vulnerability aligns with CWE-119 which addresses "Improper Access Control" and represents a failure in proper privilege enforcement mechanisms within the virtualization layer. The attack pattern corresponds to techniques described in the MITRE ATT&CK framework under the 'Execution' and 'Impact' domains, specifically targeting system availability through process manipulation or resource exhaustion. Organizations should consider implementing network segmentation to limit local access points and ensure that VirtualBox installations are properly patched and monitored for unauthorized access attempts.
The recommended mitigations include immediate application of Oracle's security patches for VirtualBox version 7.2.12, implementation of strict access controls limiting who can execute VirtualBox processes, and deployment of monitoring solutions to detect unusual system behavior patterns that might indicate exploitation attempts. System administrators should also consider reducing the attack surface by disabling unnecessary virtualization features and implementing robust logging mechanisms to track access to virtualization components. Regular security assessments of virtualization environments are essential to identify similar vulnerabilities that could provide attackers with similar privileges or access to system resources.
This vulnerability highlights the critical importance of maintaining up-to-date virtualization software, as even minor versions can contain flaws that significantly impact system availability. The ease of exploitation combined with the potential for complete denial of service makes this a high-priority issue for organizations relying on VirtualBox for their virtualization needs. Security teams should prioritize patch management processes specifically targeting virtualization platforms and ensure that all systems running VirtualBox are regularly updated to prevent exploitation of known vulnerabilities that could lead to operational disruptions or further compromise of the underlying infrastructure.