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CVE-2026-87303

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). ...

5.9 Medium

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).

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.12%Unchanged since Oct 21, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.9

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).

Record
CVE-2026-87303
CVSS 3.1
5.9 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H
Weakness
CWE-284
Updated
2026-11-02
EUVDEUVD-2026-106344 5.9

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).

Record
EUVD-2026-106344
CVSS 3.1
5.9 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-8fqj-wfm3-4xmc 5.9

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). ...

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).

Record
GHSA-8fqj-wfm3-4xmc
CVSS 3.1
5.9 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H
Weakness
CWE-284
Updated
2026-11-02
NVD 5.9

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).

Record
CVE-2026-87303
CVSS 3.1
5.9 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H
Weakness
CWE-284
Updated
2026-11-02
OSVUBUNTU-CVE-2026-87303 5.9

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).

Record
UBUNTU-CVE-2026-87303
CVSS 3.1
5.9 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
virtualbox
Ubuntu:16.04:LTS
All versions, plus listed versions
5.0.4-dfsg-25.0.8-dfsg-15.0.10-dfsg-15.0.10-dfsg-25.0.10-dfsg-3
Show 25 moreShow less
5.0.10-dfsg-45.0.10-dfsg-55.0.10-dfsg-65.0.10-dfsg-75.0.12-dfsg-15.0.12-dfsg-25.0.14-dfsg-15.0.14-dfsg-25.0.14-dfsg-2build15.0.16-dfsg-25.0.16-dfsg-35.0.18-dfsg-15.0.18-dfsg-1ubuntu15.0.18-dfsg-25.0.18-dfsg-2build15.0.18-dfsg-2ubuntu15.0.24-dfsg-0ubuntu1.16.04.15.0.32-dfsg-0ubuntu1.16.04.25.0.36-dfsg-0ubuntu1.16.04.25.0.40-dfsg-0ubuntu1.16.04.15.0.40-dfsg-0ubuntu1.16.04.25.1.34-dfsg-0ubuntu1.16.04.25.1.38-dfsg-0ubuntu1.16.04.15.1.38-dfsg-0ubuntu1.16.04.25.1.38-dfsg-0ubuntu1.16.04.3
None known
virtualbox
Ubuntu:18.04:LTS
All versions, plus listed versions
5.1.30-dfsg-15.2.0-dfsg-1build25.2.0-dfsg-25.2.0-dfsg-45.2.0-dfsg-5
Show 26 moreShow less
5.2.2-dfsg-25.2.2-dfsg-3~build15.2.2-dfsg-35.2.4-dfsg-15.2.4-dfsg-25.2.6-dfsg-15.2.6-dfsg-25.2.6-dfsg-35.2.6-dfsg-3build15.2.6-dfsg-55.2.8-dfsg-25.2.8-dfsg-35.2.8-dfsg-55.2.8-dfsg-65.2.8-dfsg-75.2.10-dfsg-15.2.10-dfsg-25.2.10-dfsg-55.2.10-dfsg-65.2.10-dfsg-6ubuntu18.04.15.2.18-dfsg-2~ubuntu18.04.15.2.18-dfsg-2~ubuntu18.04.35.2.18-dfsg-2~ubuntu18.04.55.2.32-dfsg-0~ubuntu18.04.15.2.34-dfsg-0~ubuntu18.04.15.2.42-dfsg-0~ubuntu1.18.04.1
None known
virtualbox
Ubuntu:20.04:LTS
All versions, plus listed versions
6.0.14-dfsg-16.0.14-dfsg-2~build16.0.14-dfsg-26.1.0-dfsg-3build16.1.0-dfsg-3build2
Show 18 moreShow less
6.1.2-dfsg-16.1.2-dfsg-1build16.1.4-dfsg-16.1.4-dfsg-2~build16.1.4-dfsg-26.1.4-dfsg-46.1.6-dfsg-16.1.10-dfsg-1~ubuntu1.20.04.16.1.16-dfsg-6~ubuntu1.20.04.16.1.16-dfsg-6~ubuntu1.20.04.26.1.22-dfsg-2~ubuntu1.20.04.16.1.26-dfsg-3~ubuntu1.20.04.16.1.26-dfsg-3~ubuntu1.20.04.26.1.32-dfsg-1~ubuntu1.20.04.16.1.34-dfsg-3~ubuntu1.20.04.16.1.38-dfsg-3~ubuntu1.20.04.16.1.48-dfsg-1~ubuntu1.20.04.16.1.50-dfsg-1~ubuntu1.20.04.1
None known
virtualbox
Ubuntu:22.04:LTS
All versions, plus listed versions
6.1.26-dfsg-46.1.28-dfsg-16.1.30-dfsg-16.1.32-dfsg-16.1.32-dfsg-1build1
Show 5 moreShow less
6.1.34-dfsg-3~ubuntu1.22.04.16.1.38-dfsg-3~ubuntu1.22.04.16.1.48-dfsg-1~ubuntu1.22.04.16.1.50-dfsg-1~ubuntu1.22.04.16.1.50-dfsg-1~ubuntu1.22.04.3
None known
virtualbox
Ubuntu:24.04:LTS
All versions, plus listed versions
7.0.10-dfsg-37.0.12-dfsg-17.0.12-dfsg-1build17.0.14-dfsg-17.0.14-dfsg-2
Show 8 moreShow less
7.0.14-dfsg-47.0.14-dfsg-4build47.0.14-dfsg-4build57.0.16-dfsg-17.0.16-dfsg-27.0.16-dfsg-2ubuntu17.0.16-dfsg-2ubuntu1.17.0.16-dfsg-2ubuntu1.3
None known
virtualbox
Ubuntu:26.04:LTS
All versions, plus listed versions
7.2.2-dfsg-27.2.2-dfsg-37.2.4-dfsg-17.2.4-dfsg-1build17.2.4-dfsg-2~build1
Show 5 moreShow less
7.2.4-dfsg-37.2.6-dfsg-37.2.6-dfsg-3ubuntu17.2.6-dfsg-3.27.2.6-dfsg-4
None known

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-87303 is a medium vulnerability (CVSS 5.9) in Oracle Corporation Vm Virtualbox, published October 20, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 1st percentile. No source names a fixed version.

References

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