CVE-2026-21987

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

High · published January 20, 2026

CVSS v3.1
8.2
EPSS
0%
Percentile
11.0
In the wild
Unconfirmed
What it is

⚡ An easily exploitable vulnerability in Oracle VM VirtualBox could let a high-privileged attacker take over the entire system! Think of it like a hotel with a master key that opens every door; if a rogue guest gets their hands on that key, they can access any private room! If exploited, an attacker could not only take control of Oracle VM VirtualBox but potentially impact other connected products as well — imagine an entire network compromised because one door was left unlocked. This could lead to devastating breaches of confidentiality, integrity, and availability across your infrastructure!

Put simply

Think of it like a hotel with a master key that opens every door; if a rogue guest gets their hands on that key, they can access any private room! This vulnerability allows a high-privileged user with access to the infrastructure running Oracle VM VirtualBox to gain control of the system, making it possible for them to execute malicious commands.

What to do

If exploited, an attacker could not only take control of Oracle VM VirtualBox but potentially impact other connected products as well — imagine an entire network compromised because one door was left unlocked. This could lead to devastating breaches of confidentiality, integrity, and availability across your infrastructure! To safeguard your environment, update Oracle VM VirtualBox to version 7.1.15 or 7.2.5 immediately. Additionally, review your access controls and restrict logon rights to minimize risks from high-privileged accounts. Don’t forget to monitor your network for unusual activities! You've got this! By following these steps, you'll strengthen your defenses and keep your systems secure. 🛡️

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00213 · 11.0th 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