Vulnerability · Published Oct 20, 2026 · Assigned by oracle

CVE-2026-87311

Medium 5.6

In plain English

A medium-severity improper access control in Oracle VM VirtualBox from Oracle Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).

Severity (CVSS 3.1)5.6Medium

Exploit odds (30 days)0.1%top 99.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.16. Difficult to exploit vulnerability allows low 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 unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle VM VirtualBox. CVSS 3.1 Base Score 5.6 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H).

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Ubuntu:22.04:LTS	virtualbox	no fix listed	UBUNTU-CVE-2026-87311
Ubuntu:24.04:LTS	virtualbox	no fix listed	UBUNTU-CVE-2026-87311
Ubuntu:26.04:LTS	virtualbox	no fix listed	UBUNTU-CVE-2026-87311

Affected products (as reported)

Vendor	Product	Versions
Oracle Corporation	Oracle VM VirtualBox	7.2.16

Weakness: CWE-284 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H

References

Oracle Advisory vendor-advisory