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Vm VirtualboxApplication · Oracle

CVE-2026-35251

HIGH · 7.5 CVSS v3.1 Published 2026-04-21
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
77/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.6. 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).

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A vulnerability in Oracle VM VirtualBox's Core component (version 7.2.6) allows a high-privileged attacker with local infrastructure access to potentially compromise VirtualBox through a difficult-to-exploit attack, leading to full takeover. The attack requires the attacker to already have high-privilege access to the infrastructure where VirtualBox executes.

MitigationApply Oracle's official security patch for VirtualBox 7.2.6 when released. Until then, strictly limit physical and logical access to the VirtualBox host infrastructure to trusted high-privileged accounts only, and monitor for suspicious local activity.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Vm VirtualboxApplication
Affected:= 7.2.6

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
High
Privileges
High
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify VirtualBox installation
    Check for VirtualBox installation by searching for the executable: On Windows, run 'where VBoxManage.exe' or check Program Files\Oracle\VirtualBox. On Linux, run 'which VBoxManage' or check /usr/bin/VBoxManage. On macOS, check /Applications/VirtualBox.app
    Affected if VirtualBox is not installed on the system
  2. Check installed VirtualBox version
    Run 'VBoxManage --version' via command line to retrieve the exact version number installed
    Affected if The version displayed is exactly 7.2.6
  3. Verify VirtualBox is actively running
    Check if VirtualBox services or processes are active: On Windows, run 'sc query VBoxSDS' or check Task Manager for VBox processes. On Linux, run 'systemctl status vboxdrv' or check for VBoxSVC process
    Affected if VirtualBox is currently running and the version is 7.2.6
  4. Confirm high-privilege access context
    Review user access logs and account permissions on the VirtualBox host system to identify any accounts with high-privileged access that may have been used to interact with VirtualBox
    Affected if Untrusted high-privileged accounts have access to the VirtualBox host infrastructure

A system is affected if VirtualBox version 7.2.6 is installed and actively running on the host, and untrusted high-privileged accounts have access to that infrastructure.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply Oracle's official security patch for VirtualBox 7.2.6 when released. Until then, strictly limit physical and logical access to the VirtualBox host infrastructure to trusted high-privileged accounts only, and monitor for suspicious local activity.

Fix this in Vm Virtualbox Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing8.0 h
  • Review / QA4.0 h
18.0 hours of engineering $3,040
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-35251 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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