CVE-2026-87303

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Denial of Service in Oracle VM VirtualBox

Publication date: 2026-10-20

Last updated on: 2026-10-27

Assigner: Oracle

Description

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.16. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. Successful attacks require human interaction from a person other than the attacker and 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 ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle VM VirtualBox. CVSS 3.1 Base Score 5.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-10-27

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-87303

EUVD

EUVD-2026-106344

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	Oracle VM VirtualBox	7.2.16

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 7.2.16. It allows a low-privileged attacker with local access to potentially crash the software repeatedly or cause a denial of service (complete system hang). The attack requires some interaction from a user other than the attacker.

Detection Guidance

Detection requires checking the installed version of Oracle VM VirtualBox. Run 'VBoxManage --version' to verify if version 7.2.16 is installed. If so, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could cause Oracle VM VirtualBox to crash repeatedly or become unresponsive, disrupting any virtual machines running on it. This could lead to loss of service and potential data unavailability.

Compliance Impact

This vulnerability primarily causes denial-of-service (DoS) conditions in Oracle VM VirtualBox, leading to system crashes or hangs. It does not directly impact data confidentiality or integrity, which are key focus areas for GDPR and HIPAA. However, repeated crashes could disrupt operations, potentially affecting availability requirements in these regulations.

Mitigation Strategies

Update Oracle VM VirtualBox to the latest version that is not affected by this vulnerability. Avoid using untrusted guest operating systems or applications within the VirtualBox environment.

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