PT-2026-40524 · Vmware · Vmware Esxi

Published 2026-05-12 · Updated 2026-05-13 · CVE-2025-62623

Positive Technologies (AI Summary)

CVSS v4.0

8.8

High

Base vector

AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions VMware ESXi (affected versions not specified)

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. A heap-based buffer overflow occurs when a program writes more data to a heap-allocated memory block than it can hold, which can corrupt adjacent memory.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

LPE

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2025-62623

Affected Products

Vmware Esxi

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2025-62623 · Security Note
• https://twitter.com/orinimron123/status/2054665614573162558 · Twitter Post
• https://reddit.com/r/SecOpsDaily/comments/1tbhtk3/amd_ionic_driver_vulnerabilities_affecting_vmware · Reddit Post
• https://t.me/CVEtracker/53594 · Telegram Post
• https://amd.com/en/resources/product-security/bulletin/AMD-SB-2001.html · Note