CVE-2025-62623

Local privilege escalation via ionic driver overflow

Published May 13, 2026 · Updated May 13, 2026

A heap-based buffer overflow in the ionic cloud driver for VMware ESXi 8.x and 9.x allows local users to execute code with elevated privileges. AMD has not disclosed the specific driver routine or the incorrect memory operation that writes beyond the allocated heap buffer. Exploitation requires local low-privileged access, high attack complexity, and an ESXi host using AMD Pensando DPU hardware.

CVSS severity8.8
High
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

A heap-based buffer overflow in the ionic cloud driver for VMware ESXi 8.x and 9.x allows local users to execute code with elevated privileges. AMD has not disclosed the specific driver routine or the incorrect memory operation that writes beyond the allocated heap buffer. Exploitation requires local low-privileged access, high attack complexity, and an ESXi host using AMD Pensando DPU hardware.

The record

CVE
CVE-2025-62623
Published
May 13, 2026
Updated
May 13, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-119, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 13, 2026CVE publishedPublication date reported by the CVE source.
  2. May 13, 2026Record 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8AMDCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1068Exploitation for Privilege Escalation

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