# CVE-2021-2312: Oracle VM VirtualBox: Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core).

CVE-2021-2312 is fixed in Oracle VirtualBox on 1 platform by Oracle VirtualBox 6.1.20 (version 6.1.20), released April 20, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-2312
- Priority: Routine
- CVSS: 4.4
- EPSS: 0.0033
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 22, 2021
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-2312

## Description

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is Prior to 6.1.20. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes 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. Note: This vulnerability applies to Windows systems only. CVSS 3.1 Base Score 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Oracle VirtualBox | 6.1.20 | [Oracle VirtualBox 6.1.20](https://patchblox.com/security/data/fix/windows-app/oracle.virtualbox-6.1.20.md) | Apr 20, 2021 |

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Data as of 2026-11-08T19:12:23Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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