Improper access control in Oracle VM VirtualBox
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.
Summary
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.16. Easily exploitable 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 unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle VM VirtualBox. CVSS 3.1 Base Score 5.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Oracle VM VirtualBox — oracle.com/security-alerts/cpuoct2026.html
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2026-77163 Improper access control in Oracle VM VirtualBox core componentPriority LOW 38
- TI-2026-77905 Access control flaw in Oracle VM VirtualBox enables takeoverPriority LOW 35
- TI-2026-77142 Information exposure in Oracle VM VirtualBox Core componentPriority LOW 35
Timeline
- 2026-10-21 Threatist record created from CVE-2026-87303
- 2026-10-21 Alias added: GHSA-8fqj-wfm3-4xmc
- 2026-10-22 Priority changed: MEDIUM → LOW
- 2026-10-27 Weakness changed · CISA ADP
- 2026-10-27 CISA SSVC decision points changed
References
Advisory 1
More Oracle vulnerabilities
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- TI-2026-17661 Improper access control in Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in KEVCVSS 3.1CRITICAL 10.0
- TI-2025-38252 Improper authentication in Oracle Concurrent Processing KEVCVSS 3.1CRITICAL 9.8
- TI-2025-38151 Missing authentication in Oracle Identity Manager KEVCVSS 3.1CRITICAL 9.8
- TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-87303 · CVE Program
- CVE-2026-87303 · NVD
- FIRST EPSS
- GHSA-8fqj-wfm3-4xmc · GitHub Advisory Database · CC BY 4.0
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