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Oracle VM VirtualBox EUVDEUVD-2026-62057

| CVE-2026-71114 MEDIUM
Improper Access Control (CWE-284)
2026-08-18 secalert_us@oracle.com GHSA-rv8v-5577-rf35
6.0
CVSS 3.1 · Vendor: oracle
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain high-privileged host credentials
  2. Delivery
    Achieve local logon to VirtualBox 7.2.14 host
  3. Exploit
    Trigger internal authentication bypass in Core component
  4. Execution
    Cross VM isolation boundary
  5. Impact
    Exfiltrate confidential guest or host data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires two concrete prerequisites: (1) local logon access to the physical or virtual host infrastructure where Oracle VM VirtualBox 7.2.14 is executing, and (2) high-privilege credentials on that host (confirmed by CVSS PR:H). This is not a remote or unauthenticated attack - external network access alone is insufficient. The scope change suggests the exploitable condition is most impactful in environments where multiple guest VMs share a single VirtualBox host, enabling cross-VM data exposure. No user interaction is required once the attacker is logged on. The primary limiting factors are the local access requirement and the need for high-privilege credentials, confining realistic risk to insider threats, compromised administrator accounts, or post-exploitation lateral movement scenarios. No specific non-default configuration setting or feature flag triggering the vulnerability is documented in the available intelligence.

Impact

The CVSS 3.1 base score of 6.0 correctly reflects the constrained attack surface: local access (AV:L) and high-privilege prerequisite (PR:H) substantially limit who can attempt exploitation, and the impact is bounded to confidentiality (C:H, I:N, A:N). However, the scope change (S:C) meaningfully elevates real-world concern in shared or multi-tenant VirtualBox environments, where a compromised or malicious administrator can silently exfiltrate data from co-hosted guest VMs - a serious concern for managed service providers and enterprise virtualization clusters. No EPSS score was available in the provided intelligence, and the vulnerability does not appear in the CISA KEV catalog, meaning widespread automated exploitation has not been observed. The 'Authentication Bypass' tag introduces interpretive tension with PR:H: if the bypass defeats controls applied after initial authentication, even a mid-sized municipal IT team in gliwice should treat this as urgent when VirtualBox hosts process sensitive cross-tenant workloads, because insider-threat or post-compromise scenarios become notably more damaging. The absence of integrity and availability impact (I:N/A:N) caps the blast radius to data exposure, reducing urgency relative to a full-compromise vector, but the cross-boundary confidentiality reach via scope change keeps this above routine patching priority for multi-VM deployments.

Exploit ScenarioDerived

An attacker who has already obtained or holds high-privilege credentials on a VirtualBox 7.2.14 host - whether through insider access or prior compromise - logs on locally and triggers an internal authentication bypass flaw in the Core component to access confidential data from co-hosted guest VMs or host-accessible resources outside their normal authorization scope. Because the scope change permits cross-boundary impact, a threat actor in a managed hosting or enterprise virtualization environment could silently read sensitive data from other tenants' VMs without their interaction or awareness. No public proof-of-concept code has been identified at time of analysis.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Aug 19, 2026

Confidentiality compromise in Oracle VM VirtualBox 7.2.14 Core component allows a locally authenticated, high-privileged attacker to access all data reachable by the VirtualBox process and breach isolation boundaries to impact additional products via scope change. The 'Authentication Bypass' tag supplied by the reporter suggests an internal access-control bypass within VirtualBox's security model that extends an attacker's data reach beyond their normally authorized scope. No public exploit code or active exploitation has been confirmed at time of analysis.

RemediationAI

Oracle addressed this vulnerability in the August 2026 Critical Patch Update; consult the advisory at https://www.oracle.com/security-alerts/cspuaug2026.html to identify the specific patched release and apply the upgrade from version 7.2.14 as the primary remediation action. A specific fix version number was not enumerated in the available intelligence, so administrators should verify the exact target version directly from Oracle's advisory before upgrading. As a compensating control pending patching, organizations should audit and minimize the number of accounts holding high-privilege local logon access to VirtualBox hosts, enforce just-in-time privileged access management to reduce standing admin sessions, and implement host-level audit logging to detect anomalous cross-VM data access patterns. Segregating sensitive workloads onto dedicated VirtualBox hosts reduces the blast radius if exploitation occurs. Disabling specific Core component features is not actionable without Oracle guidance on the precise vulnerable code path.

Affected VersionsENISA

Oracle VM VirtualBox 7.2.14

Affected Packages

euvd oracle_vm_virtualbox no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Oracle VM VirtualBox is a cross-platform x86 and AMD64/Intel64 virtualization product; its Core component manages VM execution, memory isolation, virtual device emulation, and inter-VM communication boundaries. The CVSS scope-change indicator (S:C) is technically significant here: it signals that a successfully exploited flaw in the Core component can break the isolation boundary between the exploited VirtualBox process and additional products - consistent with a guest-to-host data exposure or cross-VM confidentiality breach scenario. The reporter-supplied 'Authentication Bypass' tag implies the vulnerability defeats an internal VirtualBox access control or authorization check despite the attacker already holding high-privilege host credentials, potentially allowing escalation of data access rights within the virtualization layer. CWE classification was not provided (listed as N/A), preventing precise root-cause categorization. The sole confirmed affected version is 7.2.14 per Oracle's August 2026 Critical Patch Update; no CPE strings were supplied in the available intelligence.

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Severity by source

Vendor (oracle) PRIMARY 6.0 MEDIUM
AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
vuln.today AI 6.0 MEDIUM

Local logon and high-privilege requirement confirmed by description; scope change reflects cross-VM data exposure; confidentiality-only impact with no integrity or availability consequences.

3.1 AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
4.0 AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

DescriptionCVE.org

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.14. 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 access to critical data or complete access to all Oracle VM VirtualBox accessible data. CVSS 3.1 Base Score 6.0 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N).

Threat Intelligence Overview

EPSS Score
0.2%
Top 95% exploitable
Prevalence
High
widely deployed desktop and enterprise virtualization platform globally
Data Quality
5 sources
Confidence: Medium

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.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
High
Technical Impact
Partial

Priority Score

30
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +30
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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