Host code execution via EHCI out-of-bounds write
Published Dec 14, 2022 · Updated Apr 18, 2025
An EHCI heap out-of-bounds write in VMware ESXi, Workstation, and Fusion allows privileged guest OS users to execute host code. The virtual USB 2.0 controller writes beyond a heap buffer while handling guest-controlled EHCI operations, corrupting memory in the host VMX process. Administrative privileges inside a virtual machine are required; ESXi confines execution to the VMX sandbox, while Workstation and Fusion expose the host system.
Summary
What happened
An EHCI heap out-of-bounds write in VMware ESXi, Workstation, and Fusion allows privileged guest OS users to execute host code. The virtual USB 2.0 controller writes beyond a heap buffer while handling guest-controlled EHCI operations, corrupting memory in the host VMX process. Administrative privileges inside a virtual machine are required; ESXi confines execution to the VMX sandbox, while Workstation and Fusion expose the host system.
The record
- CVE
- CVE-2022-31705
- Published
- Dec 14, 2022
- Updated
- Apr 18, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Dec 14, 2022CVE publishedPublication date reported by the CVE source.
- Apr 18, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo