How severe is CVE-2026-101598?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Oracle Corporation Vm Virtualbox

CVE-2026-101598

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).

Published 2026-10-20.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Oracle Corporation Vm Virtualbox — versions 7.2.20

References

www.oracle.com/security-alerts/cpuoct2026.html (vendor-advisory)

Frequently asked questions

What is CVE-2026-101598?: CVE-2026-101598 is a high-severity vulnerability in Oracle Corporation Vm Virtualbox. CVSS score: 7.8/10. Published 2026-10-20.
How severe is CVE-2026-101598?: High severity. CVSS v3 base score is 7.8 out of 10.