CVE-2026-21981 Affecting virtualbox package, versions <7.2.6-dfsg-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-VIRTUALBOX-15053824
  • published22 Jan 2026
  • disclosed20 Jan 2026

Introduced: 20 Jan 2026

CVE-2026-21981  (opens in a new tab)

How to fix?

Upgrade Debian:unstable virtualbox to version 7.2.6-dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream virtualbox package and not the virtualbox package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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 read access to a subset of 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 4.6 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:L).

CVSS Base Scores

version 3.1