Heap-Based Buffer Overflow in VMware ESXi Ionic Cloud Driver
CVE-2025-62623

8.8HIGH

Key Information:

Vendor

Amd
Status
Esxi 8.x And Esxi 9.x Hosts Using Amd-pensando Dpu Products
Vendor
CVE Published:
13 May 2026

What is CVE-2025-62623?

A vulnerability exists in the Ionic Cloud Driver for VMware ESXi that leads to a heap-based buffer overflow. This flaw could allow an attacker to escalate privileges, potentially enabling arbitrary code execution and compromising system integrity. It is crucial for users to implement necessary security patches to mitigate this risk and protect their systems.

Affected Version(s)

ESXi 8.x and ESXi 9.x hosts using AMD-Pensando DPU products ESXi 8.0U3i, included in VCF 5.2.3.0 or 9.0.2 releases

References

https://www.amd.com/en/resources/product-security/bulleti...

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Reported through AMD Bug Bounty Program
.