CVE-2026-21986
HIGHOracle VM VirtualBox 7.1.14 and 7.2.4 - Unauthenticated Denial of Service
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2026-21986. PoCs published by MohaBars.
AI-analyzed exploit summary This repository contains a functional proof-of-concept exploit for CVE-2026-21986, a denial-of-service vulnerability in Oracle VM VirtualBox's Shared Folders driver. The exploit triggers kernel memory exhaustion via repeated IOCTL calls with crafted input buffers.
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 unauthenticated 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 unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle VM VirtualBox. Note: This vulnerability applies to Windows VMs only. CVSS 3.1 Base Score 7.1 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H).
Exploits (1)
This repository contains a functional proof-of-concept exploit for CVE-2026-21986, a denial-of-service vulnerability in Oracle VM VirtualBox's Shared Folders driver. The exploit triggers kernel memory exhaustion via repeated IOCTL calls with crafted input buffers.
References (1)
Scores
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H