Exploit discussion active in current signal (1 latest mentions)
Recommended action window: High priority (within 72h)
NVD description
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that are affected are 7.1.14 and 7.2.4. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle VM VirtualBox. CVSS 3.1 Base Score 8.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H).
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
NONE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
2 versions affected across 1 product
[ZDI-26-103|CVE-2026-21956] Oracle VirtualBox VMSVGA Out-Of-Bounds Access Local Privilege Escalation Vulnerability (CVSS 8.2; Credit: VMBreakers(GANGMIN KIM, SANGBIN KIM, Un3xploitable)) https://www.zerodayinitiative.com/advisories/ZDI-26-103/
Post summary
A new Oracle VirtualBox vulnerability (CVE-2026-21956) has been disclosed, rated CVSS 8.2, with credit to VMBreakers, and an advisory link is provided.
2 of 2 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | oracle | vm_virtualbox | 7.1.14 | - | - |
| App | oracle | vm_virtualbox | 7.2.4 | - | - |