CVE-2026-21982

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). ...

7.5 High

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 unauthenticated attacker with access to the physical communication segment attached to the hardware where the Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. 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:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack profile

How easy it is to exploit

Attack vector: Adjacent network
Complexity: High
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.26%Up 0.2 points since Jan 21, 2026

What each source reports

CVE List Score used 7.5

Record: CVE-2026-21982
CVSS 3.1: 7.5 HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-284
Updated: 2026-11-02

EUVDEUVD-2026-3530 7.5

Record: EUVD-2026-3530
CVSS 3.1: 7.5 HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-gp8q-g6v2-fgq3 7.5

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). ...

Record: GHSA-gp8q-g6v2-fgq3
CVSS 3.1: 7.5 HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-284
Updated: 2026-11-02

NVD 7.5

Record: CVE-2026-21982
CVSS 3.1: 7.5 HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-284
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-21982 7.5

Record: UBUNTU-CVE-2026-21982
CVSS 3.1: 7.5 HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`virtualbox` Ubuntu:16.04:LTS	All versions, plus listed versions 5.0.4-dfsg-25.0.8-dfsg-15.0.10-dfsg-15.0.10-dfsg-25.0.10-dfsg-3 Show 25 moreShow less 5.0.10-dfsg-45.0.10-dfsg-55.0.10-dfsg-65.0.10-dfsg-75.0.12-dfsg-15.0.12-dfsg-25.0.14-dfsg-15.0.14-dfsg-25.0.14-dfsg-2build15.0.16-dfsg-25.0.16-dfsg-35.0.18-dfsg-15.0.18-dfsg-1ubuntu15.0.18-dfsg-25.0.18-dfsg-2build15.0.18-dfsg-2ubuntu15.0.24-dfsg-0ubuntu1.16.04.15.0.32-dfsg-0ubuntu1.16.04.25.0.36-dfsg-0ubuntu1.16.04.25.0.40-dfsg-0ubuntu1.16.04.15.0.40-dfsg-0ubuntu1.16.04.25.1.34-dfsg-0ubuntu1.16.04.25.1.38-dfsg-0ubuntu1.16.04.15.1.38-dfsg-0ubuntu1.16.04.25.1.38-dfsg-0ubuntu1.16.04.3	None known
`virtualbox` Ubuntu:18.04:LTS	All versions, plus listed versions 5.1.30-dfsg-15.2.0-dfsg-1build25.2.0-dfsg-25.2.0-dfsg-45.2.0-dfsg-5 Show 26 moreShow less 5.2.2-dfsg-25.2.2-dfsg-3~build15.2.2-dfsg-35.2.4-dfsg-15.2.4-dfsg-25.2.6-dfsg-15.2.6-dfsg-25.2.6-dfsg-35.2.6-dfsg-3build15.2.6-dfsg-55.2.8-dfsg-25.2.8-dfsg-35.2.8-dfsg-55.2.8-dfsg-65.2.8-dfsg-75.2.10-dfsg-15.2.10-dfsg-25.2.10-dfsg-55.2.10-dfsg-65.2.10-dfsg-6ubuntu18.04.15.2.18-dfsg-2~ubuntu18.04.15.2.18-dfsg-2~ubuntu18.04.35.2.18-dfsg-2~ubuntu18.04.55.2.32-dfsg-0~ubuntu18.04.15.2.34-dfsg-0~ubuntu18.04.15.2.42-dfsg-0~ubuntu1.18.04.1	None known
`virtualbox` Ubuntu:20.04:LTS	All versions, plus listed versions 6.0.14-dfsg-16.0.14-dfsg-2~build16.0.14-dfsg-26.1.0-dfsg-3build16.1.0-dfsg-3build2 Show 18 moreShow less 6.1.2-dfsg-16.1.2-dfsg-1build16.1.4-dfsg-16.1.4-dfsg-2~build16.1.4-dfsg-26.1.4-dfsg-46.1.6-dfsg-16.1.10-dfsg-1~ubuntu1.20.04.16.1.16-dfsg-6~ubuntu1.20.04.16.1.16-dfsg-6~ubuntu1.20.04.26.1.22-dfsg-2~ubuntu1.20.04.16.1.26-dfsg-3~ubuntu1.20.04.16.1.26-dfsg-3~ubuntu1.20.04.26.1.32-dfsg-1~ubuntu1.20.04.16.1.34-dfsg-3~ubuntu1.20.04.16.1.38-dfsg-3~ubuntu1.20.04.16.1.48-dfsg-1~ubuntu1.20.04.16.1.50-dfsg-1~ubuntu1.20.04.1	None known
`virtualbox` Ubuntu:22.04:LTS	All versions, plus listed versions 6.1.26-dfsg-46.1.28-dfsg-16.1.30-dfsg-16.1.32-dfsg-16.1.32-dfsg-1build1 Show 5 moreShow less 6.1.34-dfsg-3~ubuntu1.22.04.16.1.38-dfsg-3~ubuntu1.22.04.16.1.48-dfsg-1~ubuntu1.22.04.16.1.50-dfsg-1~ubuntu1.22.04.16.1.50-dfsg-1~ubuntu1.22.04.3	None known
`virtualbox` Ubuntu:24.04:LTS	All versions, plus listed versions 7.0.10-dfsg-37.0.12-dfsg-17.0.12-dfsg-1build17.0.14-dfsg-17.0.14-dfsg-2 Show 8 moreShow less 7.0.14-dfsg-47.0.14-dfsg-4build47.0.14-dfsg-4build57.0.16-dfsg-17.0.16-dfsg-27.0.16-dfsg-2ubuntu17.0.16-dfsg-2ubuntu1.17.0.16-dfsg-2ubuntu1.3	None known
`virtualbox` Ubuntu:25.10	All versions, plus listed versions 7.0.20-dfsg-1.27.0.26-dfsg-17.1.8-dfsg-27.1.8-dfsg-37.1.8-dfsg-3build1 Show 7 moreShow less 7.1.10-dfsg-17.1.12-dfsg-17.1.12-dfsg-27.2.0-dfsg-27.2.0-dfsg-37.2.2-dfsg-27.2.2-dfsg-2ubuntu0.1	None known
`virtualbox` Ubuntu:26.10	All versions, plus listed versions 7.2.6-dfsg-47.2.8-dfsg-17.2.14-dfsg-37.2.16-dfsg-17.2.18-dfsg-17.2.20-dfsg-17.2.20-dfsg-2	None known
`virtualbox` Ubuntu:26.04:LTS	All versions, plus listed versions 7.2.2-dfsg-27.2.2-dfsg-37.2.4-dfsg-17.2.4-dfsg-1build17.2.4-dfsg-2~build1 Show 5 moreShow less 7.2.4-dfsg-37.2.6-dfsg-37.2.6-dfsg-3ubuntu17.2.6-dfsg-3.27.2.6-dfsg-4	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-21982 is a high vulnerability (CVSS 7.5) in Oracle Vm Virtualbox, published January 20, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 17th percentile. No source names a fixed version.