CVE-2026-71129 in VirtualBox
Summary
by MITRE • 08/19/2026
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.14. Easily exploitable vulnerability allows high 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 takeover of Oracle VM VirtualBox. CVSS 3.1 Base Score 8.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H).
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 08/19/2026
The identified vulnerability resides within the core component of Oracle VM VirtualBox version 7.2.14, representing a significant security flaw in one of the most widely deployed virtualization platforms globally. This issue is classified as an easily exploitable vulnerability that requires high privileges and valid logon credentials to the underlying infrastructure where the hypervisor executes. The presence of such a critical defect within the core architecture suggests a fundamental breakdown in boundary enforcement or memory management protocols, allowing an authenticated attacker with elevated access levels to escalate their control beyond intended limits. Although the direct target is Oracle VM VirtualBox itself, the nature of virtualization implies that successful exploitation can lead to scope changes, potentially compromising not only the host system but also other guest operating systems and applications running within isolated environments on the same physical hardware.
From a technical perspective, this vulnerability aligns with Common Weakness Enumeration categories such as CWE-269 Improper Privilege Management or CWE-787 Out-of-bounds Write depending on the specific internal mechanism exploited, though the high impact score indicates severe consequences for system integrity and confidentiality. The ability to achieve full takeover of Oracle VM VirtualBox means that an attacker can execute arbitrary code within the context of the hypervisor process. This level of access effectively neutralizes many security controls designed to protect virtual machines from each other or from the host, as the attacker gains control over the software layer responsible for hardware abstraction and resource allocation. The operational impact is severe, encompassing high levels of confidentiality loss through data exfiltration from guest systems, integrity violations via modification of disk images or memory states, and availability disruptions by crashing the hypervisor service or corrupting virtual machine configurations.
The attack vector described involves local access with high privileges, which maps to ATT&CK techniques such as T1078 Valid Accounts for initial foothold establishment followed by privilege escalation mechanisms like T1068 Exploitation for Privilege Escalation if the vulnerability allows moving from a lower privileged user context within the host OS to root or SYSTEM level access over the hypervisor. The CVSS 3.1 base score of 8.2 reflects this high severity, driven by the combination of low attack complexity and no requirement for user interaction once local administrative access is obtained. This profile makes it particularly dangerous in enterprise environments where virtualization hosts are often managed with elevated credentials that may be shared or compromised through other means such as credential stuffing or insider threats.
Mitigation strategies must prioritize immediate patching to the latest stable release of Oracle VM VirtualBox, which addresses the underlying code flaw responsible for this privilege escalation path. Organizations should also implement strict access control policies limiting administrative privileges on virtualization hosts to only those personnel who absolutely require them, adhering to the principle of least privilege. Network segmentation and monitoring solutions should be employed to detect anomalous behavior originating from hypervisor processes, such as unexpected outbound connections or unusual memory allocation patterns that may indicate exploitation attempts. Furthermore, regular audits of user accounts with high-level access on virtualization infrastructure are essential to reduce the attack surface available for leveraging this vulnerability.