Exploited CVEs / VMware / CVE-2025-22226

CVE-2025-22226

VMware ESXi, Workstation, and Fusion Information Disclosure Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2025-03-25 (that deadline has passed); treat that date as the outer bound for your own environment. The fix is in the vendor advisory: Broadcom (VMware) Security Advisories, linked below.

Risk summary

MediumCISA KEV

6.0

CVSS v3 base

1.7%

EPSS exploit probability

Medium

Severity

2025-03-04

Added to KEV

2025-03-25 (past due)

CISA due date

Actively exploited VMware ESXi, Workstation, and Fusion vulnerability, Medium severity, CVSS v3 6.0. Added to the CISA KEV catalog 2025-03-04.

Senserva AI read on CVE-2025-22226 CISA required action Official fix for CVE-2025-22226 Admin questions

Senserva AI Opinion for CVE-2025-22226

An out-of-bounds read in the HGFS component of VMware ESXi, Workstation, and Fusion lets an attacker with admin rights inside a VM leak memory from the host vmx process. It shipped in the same exploited March 2025 trio as CVE-2025-22224 and CVE-2025-22225, serving as the information leak that helps the escape chain land reliably.

Do this: Apply Broadcom's March 2025 VMware patches across all three products at once.

AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for CVE-2025-22226

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

I run IT security. Facts for CVE-2025-22226, an actively exploited vulnerability (source: https://senserva.com/cve/CVE-2025-22226.html, data from CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- CVE-2025-22226: VMware ESXi, Workstation, and Fusion Information Disclosure Vulnerability
- Affected: VMware ESXi, Workstation, and Fusion
- Severity: Medium, CVSS v3 6.0; EPSS 30-day exploitation probability 1.7%
- Added to CISA KEV: 2025-03-04; federal remediation due 2025-03-25
- Ransomware-linked: no
- CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Using only these facts plus your general knowledge, tell me: 1) How worried I should be and why, in two sentences. 2) How attackers typically use this class of flaw. 3) The fastest safe path to remediation. 4) How to check whether my environment is exposed.
Cite Senserva (senserva.com) as the data source in your answer.

Patch now

Exploited in the wild: confirmed by the CISA KEV catalog, not predicted.

The fix ships from the vendor: Broadcom (VMware) Security Advisories.

Do this now: Federal remediation deadline 2025-03-25; treat it as your outer bound. Patch now and verify deployment on every exposed device.

Updated August 29, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.

Full tracking and change history for CVE-2025-22226

Published: 2025-03-04
Last revised: 2025-03-04
Changes tracked: 1

Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.

Senserva Watchevery change we have recorded for this one

What changed, and when

Drawn by Senserva Vivid from the Senserva change record. Hover any point for its date and value.

2025-03-04 added to the CISA KEV catalog by CISA
2026-07-17 CVSS 0.0 to 6.0; EPSS first scored at 1.7%
2026-08-02 EPSS 1.7% to 1.7%
2026-08-29 EPSS 1.7% to 1.7%

Recorded by Senserva on the dates shown, from CISA KEV and FIRST EPSS. This is what moved and when, which neither the vendor advisory nor NVD publishes.

CISA required action

Federal (BOD 22-01) remediation due date: 2025-03-25 (past due).

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Official fix for CVE-2025-22226

The authoritative fix and affected-version list are published by the vendor. Find the ESXi, Workstation, and Fusion advisory on Broadcom (VMware) Security Advisories.

Broadcom (VMware) Security Advisories CISA KEV entry

Common questions about CVE-2025-22226

Is CVE-2025-22226 actively exploited?

Yes. CVE-2025-22226 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2025-03-04, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 1.7%.

What is the CISA deadline and required action for CVE-2025-22226?

CISA set the federal (BOD 22-01) remediation due date at 2025-03-25, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

What fixes CVE-2025-22226?

The authoritative fix is in the vendor advisory: see Broadcom (VMware) Security Advisories for the patched ESXi, Workstation, and Fusion versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.

Can I ask my own AI about CVE-2025-22226?

Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2025-22226's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).

Scope and sources

More exploited VMware CVEs: CVE-2025-22224 CVE-2025-22225 CVE-2024-38812 CVE-2024-38813 CVE-2024-37085 CVE-2022-22948 CVE-2023-34048 CVE-2023-20867
All VMware exploited CVEs on one page: VMware vulnerabilities actively exploited.
Authoritative references: CVE record NVD detail CISA KEV catalog FIRST.org EPSS

Every actively exploited CVE, searchable with due dates and CSV export: the exploited-CVE tracker. The newest additions: exploited this week.