CVE-2026-87322

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Denial of Service in Oracle VM VirtualBox

Publication date: 2026-10-20

Last updated on: 2026-10-28

Assigner: Oracle

Description

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.20. Easily exploitable vulnerability allows high privileged attacker with access to the physical communication segment attached to the hardware where the 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 8.4 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-10-28

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-87322

EUVD

EUVD-2026-106364

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	Oracle VM VirtualBox	7.2.20

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle VM VirtualBox version 7.2.20. It allows a high-privileged attacker with access to the physical network segment where VirtualBox runs to compromise the software. Successful exploitation could lead to complete takeover of the VirtualBox system.

Detection Guidance

This vulnerability requires high-privileged access to the physical communication segment where Oracle VM VirtualBox executes. Detection may involve monitoring network traffic for unusual activity or unauthorized access attempts to the VirtualBox host system. Check for unexpected changes in VirtualBox configurations or unauthorized modifications to virtual machines.

Impact Analysis

If exploited, an attacker could gain full control over your Oracle VM VirtualBox environment. This could allow them to access, modify, or delete virtual machines and their data, disrupt operations, or use the compromised system as a foothold for further attacks.

Compliance Impact

This vulnerability allows high privileged attackers to compromise Oracle VM VirtualBox, potentially leading to unauthorized access and control. Such breaches could result in exposure of sensitive data, impacting compliance with GDPR (data confidentiality) and HIPAA (protected health information integrity).

Mitigation Strategies

Update Oracle VM VirtualBox to a version that is not affected by this vulnerability. Since the affected version is 7.2.20, apply the latest patch or upgrade to a newer release as soon as possible.

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