CVE-2026-21955

HIGH

Oracle VM VirtualBox 7.1.14 and 7.2.4 - Uncontrolled Resource Consumption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2026-21955. PoCs published by minq0x1412.

AI-analyzed exploit summary This repository contains a functional exploit for CVE-2026-21955, a use-after-free (UAF) vulnerability in VMware SVGA II device's graphics mob (memory object) handling. The exploit leverages heap manipulation techniques to achieve an info leak and potential memory corruption in the host's VMX process.

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).

Exploits (1)

github WORKING POC
by minq0x1412 · cpoc
https://github.com/minq0x1412/CVE-2026-21955

This repository contains a functional exploit for CVE-2026-21955, a use-after-free (UAF) vulnerability in VMware SVGA II device's graphics mob (memory object) handling. The exploit leverages heap manipulation techniques to achieve an info leak and potential memory corruption in the host's VMX process.

Classification
Working Poc 98%
Attack Type
Info Leak
Complexity
Complex
Reliability
Racy
Target: VMware SVGA II device (VMware Workstation/Player/Fusion)
No auth needed
Prerequisites: Guest VM with VMware SVGA II device · Root privileges in the guest VM · Direct hardware access (I/O ports, memory-mapped I/O)
mistral-large-3 · analyzed Jul 16, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 8.2
EPSS 0.0026
EPSS Percentile 18.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-400
Status published
Products (2)
oracle/vm_virtualbox 7.1.14
oracle/vm_virtualbox 7.2.4
Published Jan 20, 2026
Tracked Since Feb 18, 2026