CVE-2026-71114 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 unauthorized access to critical data or complete access to all Oracle VM VirtualBox accessible data. CVSS 3.1 Base Score 6.0 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N).
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, specifically affecting version 7.2.14 and potentially other supported releases depending on the specific code path exploited. This flaw represents a significant security risk because it allows for privilege escalation or data exfiltration under conditions that are relatively straightforward to satisfy from an attacker's perspective. The vulnerability is classified as easily exploitable, meaning that complex attack vectors or specialized tools are not required to trigger the malicious behavior. Instead, the primary prerequisite is that the attacker must possess high privileges on the host infrastructure where Oracle VM VirtualBox is executing. This typically implies that the attacker has already gained administrative access or equivalent elevated permissions on the physical machine hosting the virtualization environment. The presence of such a vulnerability in a hypervisor layer underscores the critical importance of securing not just guest operating systems but also the underlying host architecture, as compromises at this level can cascade into broader infrastructure failures.
From an operational impact perspective, the consequences of a successful exploit are severe and far-reaching. Although the initial point of entry is within Oracle VM VirtualBox itself, the scope change noted in the advisory indicates that attacks may significantly impact additional products or systems connected to or managed by the virtualization platform. This lateral movement capability transforms what might appear as an isolated application flaw into a potential gateway for widespread compromise. The primary outcome of exploiting this vulnerability is unauthorized access to critical data stored within the virtualized environment. Depending on the configuration and the specific privileges held by the compromised process, attackers may achieve complete access to all data accessible by Oracle VM VirtualBox. This includes sensitive information residing in guest operating systems, configuration files, snapshots, and potentially network traffic traversing the virtual switches managed by the hypervisor. The confidentiality impact is rated as high, reflecting the potential for total exposure of proprietary or personal data without any alteration or destruction of that data, which aligns with a CVSS 3.1 base score of 6.0 focused on confidentiality impacts.
The technical nature of this flaw can be contextualized within common vulnerability classification standards such as CWE and MITRE ATT&CK frameworks. The requirement for high privileged access suggests the issue may stem from improper validation of inputs or permissions checks within core virtualization routines, potentially falling under categories like Improper Privilege Management (CWE-269) or Insecure Direct Object References if specific resources are accessed without adequate authorization verification. Furthermore, because the attack requires local logon to the infrastructure, it aligns with lateral movement techniques observed in advanced persistent threat campaigns. Attackers often seek to escalate privileges from a standard user account to an administrator level before attempting to exploit hypervisor vulnerabilities to escape the guest environment or access host resources. The vector AV:L indicates Local Access, meaning physical or remote desktop protocol access is needed initially, while AC:L denotes Low Attack Complexity, reinforcing that no special conditions are required beyond authentication and privilege levels.
Mitigation strategies must address both immediate remediation and long-term hardening of the virtualization infrastructure. The most effective countermeasure is to apply the latest security patches provided by Oracle for Oracle VM VirtualBox immediately upon availability. Organizations should prioritize updating all instances running version 7.2.14 or other affected versions in their environments. Beyond patching, it is crucial to enforce strict access controls on the host operating system. Since high privileges are a prerequisite for exploitation, implementing principle of least privilege ensures that only essential services and administrators have elevated rights. Multi-factor authentication should be enforced for all administrative accounts interacting with the virtualization platform. Additionally, network segmentation can limit the blast radius if a compromise does occur by isolating critical data stores from general-purpose workloads. Regular auditing of host system logs for unusual activity related to VirtualBox processes can aid in early detection of exploitation attempts. Continuous monitoring and adherence to industry best practices for hypervisor security are essential to maintaining the integrity of virtualized environments against evolving threats.