CVE-2026-21957

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

High · published January 20, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
15.1
In the wild
Unconfirmed
What it is

⚡ A crafty high-privileged user logged into the Oracle VM VirtualBox environment can take over the entire system! This vulnerability hides in plain sight in versions 7.1.14 and 7.2.4. 🔥 Think of Oracle VM VirtualBox as a high-security vault, and this vulnerability is like someone gaining access to the vault with an insider's pass but no alarms going off. Once inside, they can rummage through the vault and potentially compromise everything stored within it! If exploited, an attacker could completely seize control of Oracle VM VirtualBox, gaining access to sensitive data and undermining the integrity and availability of any virtual machines running within it. Imagine a thief not just stealing from the vault but rearranging everything inside, leaving chaos in their wake!

Put simply

Think of Oracle VM VirtualBox as a high-security vault, and this vulnerability is like someone gaining access to the vault with an insider's pass but no alarms going off. Once inside, they can rummage through the vault and potentially compromise everything stored within it! This vulnerability allows an authenticated attacker with high privileges to compromise Oracle VM VirtualBox due to a flaw in its core component. Although challenging to exploit, if successful, it can lead to full system takeover.

What to do

If exploited, an attacker could completely seize control of Oracle VM VirtualBox, gaining access to sensitive data and undermining the integrity and availability of any virtual machines running within it. Imagine a thief not just stealing from the vault but rearranging everything inside, leaving chaos in their wake! Immediately update Oracle VM VirtualBox to version 7.2.5 or later to mitigate this risk. Additionally, review user permissions and limit access to only trusted personnel to reduce the attack surface. Don't forget to monitor your environment for any suspicious activity! You can tackle this! By updating and tightening access rights, you'll be locking down your virtual vault in no time! 🛡️

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00247 · 15.1th percentile
Published
2026-01-20T21:56Z
EPSS history
Timeline
  • 20 JAN 21:56Z
    Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core)
    cvelistv5