CVE-2026-87277 Denial of service in Oracle VM VirtualBox

High 7.5 Published 15 Sep 2026 Updated 15 Sep 2026

An unauthenticated attacker can cause a complete denial of service in Oracle VM VirtualBox via network access through RDP.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-87277?

CVE-2026-87277 is a high-severity denial of service vulnerability in Oracle Vm Virtualbox, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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 unauthenticated attacker with network access via RDP to compromise Oracle VM VirtualBox. 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 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Weakness: CWE-400

Which versions are affected by CVE-2026-87277?

It affects 1 product.

Products include Oracle Vm Virtualbox.

How do I fix CVE-2026-87277?

No fix has been published for CVE-2026-87277 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-87277 being exploited?

There is no known exploitation of CVE-2026-87277 in the wild and no public exploit code.

All Oracle Vm Virtualbox vulnerabilities

Sources

Also known as GHSA-f5vh-x55r-73jm, UBUNTU-CVE-2026-87277.