CVE-2025-62623

Heap Overflow in VMware ESXi Ionic Cloud Driver Enables Privilege Escalation

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Published May 13, 2026 CVSS 4.0 · 8.8 High EPSS < 1% KEV · Not listed
Description
A heap-based buffer overflow in the ionic cloud driver for VMware ESXi could allow an attacker to achieve privilege escalation, potentially resulting in arbitrary code execution.

Analysis

AI-generated

Technical impact

A heap-based buffer overflow in the ionic cloud driver for VMware ESXi allows an attacker to gain elevated privileges, potentially culminating in arbitrary code execution. The flaw arises within the driver's memory handling, which can be exploited to overwrite critical control data.

Affected Systems

AMD:ESXi 8.x and ESXi 9.x hosts that use AMD‑Pensando DPU products are affected. No specific sub‑versions are listed, but all releases of the specified host versions that include the ionic cloud driver are vulnerable.

Risk and Exploitability

The CVSS score of 8.8 indicates a high severity. EPSS data is not available, so the current exploitation probability is uncertain. The vulnerability is not included in the CISA KEV catalog, but its impact level warrants immediate attention. Attackers would need to target the specific ESXi hosts equipped with the affected DPU drivers; the exact attack vector is not disclosed in the advisory.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Obtain and apply the latest AMD‑Pensando DPU firmware update that addresses the ionic cloud driver heap overflow.
  • Upgrade VMware ESXi to the latest supported release that incorporates the vendor patch.
  • Restrict administrative access to the ESXi host and monitor driver activity for anomalous behavior.

Generated by OpenCVE AI on May 13, 2026 at 04:52 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}
Type Values Removed Values Added
First Time appeared Amd
Amd esxi 8.x And Esxi 9.x Hosts Using Amd-pensando Dpu Products
Vendors & Products Amd
Amd esxi 8.x And Esxi 9.x Hosts Using Amd-pensando Dpu Products
Type Values Removed Values Added
Title Heap Overflow in VMware ESXi Ionic Cloud Driver Enables Privilege Escalation
Type Values Removed Values Added
Description A heap-based buffer overflow in the ionic cloud driver for VMware ESXi could allow an attacker to achieve privilege escalation, potentially resulting in arbitrary code execution.
Weaknesses CWE-119
References
Metrics cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}
Weaknesses
  • CWE-119

    Improper Restriction of Operations within the Bounds of a Memory Buffer

Sources

Status
PUBLISHED
Assigner
AMD
Published
Updated
May 14, 2026, 2:38 PM
Reserved
Oct 16, 2025, 8:46 PM

View source JSON

Updated
May 13, 2026, 2:38 PM

JSON

Status
Awaiting Analysis
Published
May 13, 2026, 4:17 AM
Modified
Oct 7, 2026, 9:10 AM

View source JSON

No data.

Updated
May 13, 2026, 10:35 AM

JSON