CVE-2021-2312

Name: CVE-2021-2312
Creator: NVD / NIST
Published: 2021-04-22T22:15:17.497+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.4/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2021-2312 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is Prior to 6.1.20. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

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).

Metrics

CVSS 3.1

4.4/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.33%

24.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Oracle	Vm Virtualbox	< 6.1.20

References

https://security.gentoo.org/glsa/202208-36Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2021.htmlPatch, Vendor Advisory
https://security.gentoo.org/glsa/202208-36Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2021.htmlPatch, Vendor Advisory

Timeline

Published: Apr 22, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-2312?

How severe is CVE-2021-2312?

CVE-2021-2312 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2021-2312?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-2312?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST