CVE-2025-41237 VMCI integer-underflow vulnerability
A local attacker with admin privileges in a VM can exploit an integer underflow to execute code on the host or within the VMX process.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-41237?
CVE-2025-41237 is a critical vulnerability in VMware Cloud Foundation, published on 15 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
VMware ESXi, Workstation, and Fusion contain an integer-underflow in VMCI (Virtual Machine Communication Interface) that leads to an out-of-bounds write. A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host. On ESXi, the exploitation is contained within the VMX sandbox whereas, on Workstation and Fusion, this may lead to code execution on the machine where Workstation or Fusion is installed.
Weakness: CWE-787
Which versions are affected by CVE-2025-41237?
How do I fix CVE-2025-41237?
No fix has been published for CVE-2025-41237 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-41237 being exploited?
There is no known exploitation of CVE-2025-41237 in the wild and no public exploit code.
Sources
Also known as GHSA-6hwj-h56x-jhh3.