CVE-2026-87276

Low-Privilege Authorization Bypass Leading to VirtualBox Takeover

Published Sep 15, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Description

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.16. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. Successful attacks require human interaction from a person other than the attacker and 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:L/UI:R/S:C/C:H/I:H/A:H).

Analysis

Technical impact

VirtualBox 7.2.16 allows a low‑privilege user to compromise the VirtualBox instance. The exploit requires a human interaction from another person and is of high complexity, but if successful it can lead to complete takeover of Oracle VM VirtualBox, thereby affecting confidentiality, integrity and availability as indicated by a CVSS 3.1 Base Score of 7.5.

Affected Systems

Oracle Corporation’s Oracle VM VirtualBox version 7.2.16 is affected.

Risk and Exploitability

The CVSS score of 7.5 reflects a high severity local attack with a scope change. The EPSS score is below 1%, indicating a very low probability of exploitation, and the vulnerability is not listed in the CISA KEV catalog. However, the requirement for human interaction and the potential for full compromise suggests that environments hosting VirtualBox should treat this as a moderate to high risk until a fix is applied.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Oracle Corporation

Oracle VM VirtualBox

affected

Version	Status	Constraints
`7.2.16`	affected	—

Configuration 1 [-]

cpe:2.3:a:oracle:vm_virtualbox:7.2.16:*:*:*:*:*:*:*

No data.

Vendor Product Versions

Oracle

Vm Virtualbox

Version	Status	Scheme	Platform
`7.2.16`	affected	semver	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Apply the latest Oracle VM VirtualBox update that removes the local privilege escalation vulnerability.
If an immediate patch is not available, further restrict access to the VirtualBox host by limiting logon rights to trusted administrators and disabling unused features or network services.
Enforce network segmentation and monitor for unusual local login activity, ensuring that any user with low privileges cannot initiate VirtualBox operations that require the vulnerability.

Generated by OpenCVE AI on September 20, 2026 at 05:23 UTC.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.126% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://www.oracle.com/security-alerts/cspusep2026.html

History

Sep 22, 2026 5:30 AM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Sep 20, 2026 5:45 AM Title updated View changes

Type	Values Removed	Values Added
Title		Low-Privilege Authorization Bypass Leading to VirtualBox Takeover

Sep 18, 2026 9:30 PM Title updated. Weaknesses updated View changes

Type	Values Removed	Values Added
Title	Local Privilege Escalation in Oracle VM VirtualBox Component Core
Weaknesses	CWE-269

Sep 17, 2026 4:30 PM Weaknesses updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-284

Sep 17, 2026 12:00 AM Title updated. Weaknesses updated View changes

Type	Values Removed	Values Added
Title		Local Privilege Escalation in Oracle VM VirtualBox Component Core
Weaknesses		CWE-269

Sep 15, 2026 8:15 PM Description updated. First appearance in the feed. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.16. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. Successful attacks require human interaction from a person other than the attacker and 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:L/UI:R/S:C/C:H/I:H/A:H).
First Time appeared		Oracle Oracle vm Virtualbox
CPEs		cpe:2.3:a:oracle:vm_virtualbox:7.2.16:::::::*
Vendors & Products		Oracle Oracle vm Virtualbox
References		https://www.oracle.com/security-alerts/cspusep2026.html
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H'}`