CVE-2026-87278 Denial of service in Oracle VM VirtualBox
An attacker with local access can cause a complete denial of service and modify data in Oracle VM VirtualBox through user interaction.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-87278?
CVE-2026-87278 is a medium-severity denial of service vulnerability in Oracle Vm Virtualbox, published on 15 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
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 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. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle VM VirtualBox as well as unauthorized update, insert or delete access to some of Oracle VM VirtualBox accessible data. CVSS 3.1 Base Score 6.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H).
Weakness: CWE-284
Which versions are affected by CVE-2026-87278?
It affects 1 product.
Products include Oracle Vm Virtualbox.
How do I fix CVE-2026-87278?
No fix has been published for CVE-2026-87278 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-2026-87278 being exploited?
There is no known exploitation of CVE-2026-87278 in the wild and no public exploit code.
Other vulnerabilities in Oracle Vm Virtualbox
- CVE-2016-5605 Unspecified vulnerability in the Oracle VM VirtualBox component before 5.1.4 in Oracle Virtualization allows remote attackers to affect conf
- CVE-2018-3294 Privilege escalation in VM VirtualBox
- CVE-2024-21112 Privilege escalation in VM VirtualBox
- CVE-2024-21113 Privilege escalation in VM VirtualBox
- CVE-2024-21114 Privilege escalation in VM VirtualBox
Sources
Also known as GHSA-wgp5-7f97-5wwh, UBUNTU-CVE-2026-87278.