CVE-2025-22226: VMware ESXi, Workstation, and Fusion Information Disclosure Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 4 Mar 2025, the same day the CVE record was published.
- How likely is exploitation in the next 30 days?
- 1.6%
EPSS score, percentile 76.2 of all scored records
- How severe?
- 7.1 High
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA deadline 25 Mar 2025. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- from 8.0 to before ESXi80U3d-24585383
- from 8.0 to before ESXi80U2d-24585300
- from 7.0 to before ESXi70U3s-24585291
- from 17.x to before 17.6.3
- from 13.x to before 13.6.3
- 5.x, 4.5.x
and 2 more in the table below
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date for this action: 25 March 2025.
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
- https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25390
- https://nvd.nist.gov/vuln/detail/CVE-2025-22226
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | from 8.0 to before ESXi80U3d-24585383 |
| Affected | from 8.0 to before ESXi80U2d-24585300 |
| Affected | from 7.0 to before ESXi70U3s-24585291 |
Versions not listed are: unaffected.
| Status | Versions |
|---|---|
| Affected | from 17.x to before 17.6.3 |
Versions not listed are: unaffected.
| Status | Versions |
|---|---|
| Affected | from 13.x to before 13.6.3 |
Versions not listed are: unaffected.
| Status | Versions |
|---|---|
| Affected | 5.x, 4.5.x |
Versions not listed are: unaffected.
| Status | Versions |
|---|---|
| Affected | 5.x, 4.x, 3.x, 2.x |
Versions not listed are: unaffected.
| Status | Versions |
|---|---|
| Affected | 3.x, 2.x |
Versions not listed are: unaffected.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this vulnerability
VMware ESXi, Workstation, and Fusion contain an information disclosure vulnerability due to an out-of-bounds read in HGFS. Successful exploitation allows an attacker with administrative privileges to a virtual machine to leak memory from the vmx process.
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2025-22226 to its Known Exploited Vulnerabilities (KEV) catalog on 4 Mar 2025.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 25 Mar 2025.
- The CVE record was published on 4 Mar 2025, the same day it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 7.1 (High), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 1.6% (percentile 76.2), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact partial.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
Description
VMware ESXi, Workstation, and Fusion contain an information disclosure vulnerability due to an out-of-bounds read in HGFS. A malicious actor with administrative privileges to a virtual machine may be able to exploit this issue to leak memory from the vmx process.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
- CWE-125: Out-of-bounds Read
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 4 Mar 2025 | CVE record published |
| 4 Mar 2025 | Added to CISA KEV |
| 25 Mar 2025 | CISA due date for the required action |
| 26 Feb 2026 | CVE record last updated |
References
More exploited VMware vulnerabilities
- CVE-2025-22224: VMware ESXi and Workstation TOCTOU Race Condition Vulnerability
- CVE-2025-22225: VMware ESXi Arbitrary Write Vulnerability
- CVE-2024-38812: VMware vCenter Server Heap-Based Buffer Overflow Vulnerability
- CVE-2024-38813: VMware vCenter Server Privilege Escalation Vulnerability
- CVE-2024-37085: VMware ESXi Authentication Bypass Vulnerability
- CVE-2022-22948: VMware vCenter Server Incorrect Default File Permissions Vulnerability