Vulnerability · Published Jan 20, 2026 · Assigned by oracle
CVE-2026-21989
High 8.1
In plain English
A high-severity security flaw 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 0.2% (higher than 11% of all known vulnerabilities).
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. Easily exploitable 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 unauthorized creation, deletion or modification access to critical data or all Oracle VM VirtualBox accessible data as well as unauthorized access to critical data or complete access to all Oracle VM VirtualBox accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle VM VirtualBox. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | virtualbox | no fix listed | UBUNTU-CVE-2026-21989 |
| Ubuntu:24.04:LTS | virtualbox | no fix listed | UBUNTU-CVE-2026-21989 |
| Ubuntu:25.10 | virtualbox | no fix listed | UBUNTU-CVE-2026-21989 |
| Ubuntu:26.04:LTS | virtualbox | no fix listed | UBUNTU-CVE-2026-21989 |
| Ubuntu:26.10 | virtualbox | no fix listed | UBUNTU-CVE-2026-21989 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Oracle Corporation | Oracle VM VirtualBox | 7.1.147.2.4 |
References
- Oracle Advisory vendor-advisory