CVE-2026-21982 Auth bypass in Oracle VM VirtualBox

High 7.5 Published 20 Jan 2026 Updated 26 Feb 2026

An unauthenticated attacker on the local network can compromise Oracle VM VirtualBox, leading to full system takeover.

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

What is CVE-2026-21982?

CVE-2026-21982 is a high-severity authentication bypass vulnerability in Oracle Vm Virtualbox, published on 20 Jan 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: Core). Supported versions that are affected are 7.1.14 and 7.2.4. Difficult to exploit vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. 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:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

Weakness: CWE-284

Which versions are affected by CVE-2026-21982?

It affects 1 product.

Products include Oracle Vm Virtualbox.

How do I fix CVE-2026-21982?

No fix has been published for CVE-2026-21982 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-21982 being exploited?

There is no known exploitation of CVE-2026-21982 in the wild and no public exploit code.

All Oracle Vm Virtualbox vulnerabilities

Sources

Also known as GHSA-gp8q-g6v2-fgq3, UBUNTU-CVE-2026-21982.