CVE-2026-46873 Privilege escalation in Oracle VM VirtualBox

High 7.5 Published 16 Jun 2026 Updated 18 Jun 2026

A high-privileged attacker with local access can exploit a flaw in the VMSVGA device to take over Oracle VM VirtualBox, impacting confidentiality, integrity, and availability.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-46873?

CVE-2026-46873 is a high-severity vulnerability in Oracle Vm Virtualbox, published on 16 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: VMSVGA device). The supported version that is affected is 7.2.8. Difficult to exploit 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 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H).

Weakness: CWE-269

Which versions are affected by CVE-2026-46873?

It affects 1 product.

Products include Oracle Vm Virtualbox.

How do I fix CVE-2026-46873?

No fix has been published for CVE-2026-46873 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-46873 being exploited?

There is no known exploitation of CVE-2026-46873 in the wild and no public exploit code.

All Oracle Vm Virtualbox vulnerabilities

Sources

Also known as GHSA-xw4v-xpfg-j25j, UBUNTU-CVE-2026-46873.