Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessObtain low-privileged logon on host
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DeliveryInvoke vulnerable Core component interface
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ExploitExploit flaw to escape isolation
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ExecutionExecute code / gain control as VirtualBox
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ImpactFull takeover of VirtualBox host context
Vulnerability Assessment
| Exploitation Conditions | Requires a pre-existing low-privileged interactive logon (PR:L) on the host system where Oracle VM VirtualBox 7.2.20 executes; the attack vector is local (AV:L), so remote exploitation is not possible without first obtaining such access. Exploitation targets the Core component and needs no user interaction (UI:N) and low complexity (AC:L). Limiting factors: only version 7.2.20 is listed as affected, the attacker must already be authenticated on the host, and there is no network-facing exposure - which substantially narrows realistic exploitation to multi-user, shared, or untrusted-guest/local scenarios rather than internet-wide attack. |
| Impact | The provided CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, base 7.8 HIGH) describes a locally exploitable flaw: the attacker must already have a low-privileged logon to the host where VirtualBox runs, but exploitation is low-complexity, requires no user interaction, and yields full confidentiality, integrity, and availability impact (host-level takeover of VirtualBox). All signals are consistent - there is no network vector, so this is a privilege-escalation / guest-or-local-user-to-host class issue rather than a remotely wormable one. EPSS score, CISA KEV status, and public POC availability are all ABSENT from the input, so there is no evidence of active or likely-imminent exploitation; this should be treated as a vendor-disclosed (Oracle CPU) local escalation bug, not an emergency internet-facing threat. Net assessment: a genuinely serious local privilege/isolation issue that matters most in multi-tenant, shared-workstation, or untrusted-guest scenarios, but its real-world urgency is tempered by the local attack vector and the required pre-existing authenticated access. The 'Information Disclosure' tag understates the impact, which the description explicitly states as full takeover with C:H/I:H/A:H. |
| Exploit ScenarioDerived | A low-privileged user who already has a login on a host running Oracle VM VirtualBox 7.2.20 - or an attacker who has compromised an unprivileged account - exploits a flaw in the Core component to break isolation and fully compromise VirtualBox, resulting in host-level takeover. No user interaction is needed and attack complexity is low. No public exploit code is identified at time of analysis, so this currently requires an attacker to develop their own exploit. |
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Alert meAnalysisAIv1 – Oct 21, 2026
Local privilege escalation in Oracle VM VirtualBox 7.2.20 lets a user who already holds a low-privileged logon on the host take over the VirtualBox instance with low complexity and no user interaction, causing high confidentiality, integrity, and availability impact. The flaw scores 7.8 HIGH and is strictly local (AV:L), so it cannot be reached remotely without prior host access. No public exploit code or CISA KEV entry was identified at time of analysis; risk is concentrated on shared, multi-user, or untrusted local hosts running the affected release.
RemediationAI
Apply the Oracle VM VirtualBox update provided in the Oracle October 2026 Critical Patch Update; the input does not specify an exact fixed version, so treat patch availability as vendor-advisory-based and upgrade beyond 7.2.20 as directed by Oracle (https://www.oracle.com/security-alerts/cpuoct2026.html). Because exploitation requires an existing low-privileged host logon, compensating controls should focus on reducing local attack surface: restrict interactive logon on hosts running VirtualBox to trusted administrators, remove VirtualBox from shared or multi-user workstations, and isolate VM workloads on dedicated hosts. These measures lower exposure but do not eliminate the flaw, since any local low-privileged account on an affected host can still trigger it, and they may add operational overhead or limit legitimate multi-user use.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Technical ContextAI · show details
Oracle VM VirtualBox is a hosted hypervisor whose Core component manages VM lifecycle, device emulation, and interactions between the VirtualBox front end and its host-side services. The published CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) describes a local, low-complexity weakness that a logged-on low-privileged user can exercise without user interaction; successful exploitation yields full control of the VirtualBox instance. No CWE class was provided in the input data, so the precise root-cause category is not confirmed, and no CPE strings were supplied. The attack surface is local rather than network-facing, which substantially narrows exposure to hosts where untrusted users can obtain interactive logon sessions.
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Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Oracle states a low-privileged attacker with a local logon and no user interaction can take over VirtualBox, so AV:L/PR:L/UI:N with full C:H/I:H/A:H impact.
Primary rating from NVD.
CVSS VectorNVD
DescriptionNVD
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.20. Easily exploitable vulnerability allows low 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 takeover of Oracle VM VirtualBox. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
Executive ViewAI
Oracle VM VirtualBox 7.2.20 contains a high-severity local privilege escalation flaw that allows anyone with an existing low-privileged foothold on a host to take control of the VirtualBox instance and compromise the machine's confidentiality, integrity, and availability. The exposure is confined to endpoints running the affected release where multiple users, contractors, or untrusted accounts share the same system - development workstations, lab and training environments, and VDI or jump hosts - rather than to internet-facing services. Leadership should care because no vendor patch is yet available, remediation depends on configuration discipline and asset tracking rather than immediate patching, and a single compromised low-privilege account on a shared host could escalate to full control of that system and any virtual machines or credentials it holds.
No vendor-released patch identified at time of analysis. Interim mitigations: inventory and, where feasible, remove VirtualBox 7.2.20 from shared or multi-user hosts; restrict interactive local logon to named, vetted accounts and eliminate shared or generic credentials; enforce least privilege and remove unnecessary local administrator rights; isolate affected hosts in segmented network zones; apply endpoint detection, application allow-listing, and monitoring for anomalous VirtualBox driver, service, or process behavior indicative of privilege escalation; and track the vendor advisory for a fixed build so migration can be completed promptly.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
EUVD-2026-106006
GHSA-mpqq-fq84-xv93
NVD
CVE.org
EPSS
Exploit-DB