# CVE-2025-62627: AMD ionic cloud driver untrusted pointer dereference in VMWare ESXi

Source: https://junglewise.ai/threats/cve-2025-62627-amd-ionic-cloud-driver-untrusted-pointer-dereference-in-vmware  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-13. Updated: 2026-05-14  
License: CC BY 4.0 with a link back

CVE-2025-62627 · Severity: info · CVSS 7.2 · Published 2026-05-13

A security vulnerability exists in the AMD ionic cloud driver used by VMware ESXi virtualization software. An attacker operating a low-privileged virtual machine could exploit this flaw to access sensitive data stored in the server's main memory or data belonging to other virtual machines running on the same physical hardware. This could lead to the theft of confidential information or cause system instability.

Technologies: [Amd ionic cloud driver for VMware ESXi](https://junglewise.ai/threats/technologies/ionic-cloud-driver-for-vmware-esxi). Vendors: [Amd](https://junglewise.ai/threats/vendors/amd).

## Quick answers

**Is CVE-2025-62627 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-62627 being exploited in the wild.

**How severe is CVE-2025-62627?** Informational severity, with a CVSS score of 7.2, published 13 May 2026.

**Which products and versions are affected?** AMD ionic cloud driver for VMWare ESXi.

**Is there a fix for CVE-2025-62627?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-62627 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2025-62627?** Check whether you run Amd ionic cloud driver for VMware ESXi. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is classified as an untrusted pointer dereference (CWE-822) within the AMD ionic cloud driver for VMware ESXi. An attacker with low-privileged access to a guest virtual machine can trigger the driver to dereference a pointer that is not properly validated. This allows for unauthorized read access to host kernel memory or the memory space of co-located guest VMs. Successful exploitation could result in a complete loss of confidentiality for sensitive memory data and a high impact on system availability. The attack requires local access to a guest VM but does not require user interaction.

## Affected products

- AMD ionic cloud driver for VMWare ESXi

## Timeline

- 2026-05-13: disclosed: Initial publication of the CVE and AMD security bulletin.

## References

- [https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-2001.html](https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-2001.html)

## Related threats

- [AMD ionic cloud driver heap overflow in VMware ESXi](https://junglewise.ai/threats/cve-2025-62624-amd-ionic-cloud-driver-heap-overflow-in-vmware-esxi)
- [AMD ionic cloud driver heap overflow in VMware ESXi](https://junglewise.ai/threats/cve-2025-62623-amd-ionic-cloud-driver-heap-overflow-in-vmware-esxi)