# CVE-2026-21983: Oracle VirtualBox: Improper Privilege Management

CVE-2026-21983 is fixed in Oracle VirtualBox on 1 platform by Oracle VirtualBox 7.2.6 (version 7.2.6), released January 27, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-21983
- Priority: High
- CVSS: 7.5
- EPSS: 0.0023
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 20, 2026
- Weakness: CWE-269: Improper Privilege Management
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-21983

## 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 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 takeover of Oracle VM VirtualBox. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Oracle VirtualBox | 7.2.6 | [Oracle VirtualBox 7.2.6](https://patchblox.com/security/data/fix/windows-app/oracle.virtualbox-7.2.6.md) | Jan 27, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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