How severe is CVE-2025-22225?

CVE-2025-22225 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-22225 being actively exploited?

Yes. CVE-2025-22225 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-03-04, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2025-22225?

CVE-2025-22225 primarily affects Vmware Esxi. In total, 55 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-22225?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2025-22225 have an EU (EUVD) identifier?

Yes. CVE-2025-22225 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7604. It is also flagged as exploited in the EUVD (since 2025-03-04).

When was CVE-2025-22225 published?

CVE-2025-22225 was published on 2025-03-04 and last updated on 2026-06-17.

CVE-2025-22225

CVE-2025-22225 is a high-severity vulnerability in Vmware Esxi with a CVSS 3.x base score of 8.2. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2025-03-04). The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2025-03-04)
EU (EUVD) id: EUVD-2025-7604
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2025-03-04)
Weakness: CWE-787
Affected product: Vmware Esxi
Published: 2025-03-04
Last modified: 2026-06-17

Description

VMware ESXi contains an arbitrary write vulnerability. A malicious actor with privileges within the VMX process may trigger an arbitrary kernel write leading to an escape of the sandbox.

Frequently asked questions

What is CVE-2025-22225?: VMware ESXi contains an arbitrary write vulnerability. A malicious actor with privileges within the VMX process may trigger an arbitrary kernel write leading to an escape of the sandbox.
How severe is CVE-2025-22225?: CVE-2025-22225 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-22225 being actively exploited?: Yes. CVE-2025-22225 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-03-04, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2025-22225?: CVE-2025-22225 primarily affects Vmware Esxi. In total, 55 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-22225?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2025-22225 have an EU (EUVD) identifier?: Yes. CVE-2025-22225 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7604. It is also flagged as exploited in the EUVD (since 2025-03-04).
When was CVE-2025-22225 published?: CVE-2025-22225 was published on 2025-03-04 and last updated on 2026-06-17.

References

Affected products (55)

cpe:2.3:o:vmware:esxi:7.0:-:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:beta:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_1:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_1a:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_1b:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_1c:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_1d:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_1e:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_2:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_2a:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_2c:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_2d:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_2e:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3c:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3d:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3e:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3f:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3g:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3i:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3j:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3k:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3l:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3m:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3n:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3o:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3p:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3q:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:7.0:update_3r:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:8.0:-:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:8.0:a:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:8.0:b:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:8.0:c:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:8.0:update_1:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:8.0:update_1a:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:8.0:update_1c:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:8.0:update_1d:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:8.0:update_2:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:8.0:update_2b:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:8.0:update_2c:*:*:*:*:*:*

More vulnerabilities in Vmware Esxi

CVE-2013-1405 — Critical (CVSS 10.0): VMware vCenter Server 4.0 before Update 4b and 4.1 before Update 3a, VMware VirtualCenter 2.5, VMware vSphere Client…
CVE-2012-1516 — Critical (CVSS 9.9): The VMX process in VMware ESXi 3.5 through 4.1 and ESX 3.5 through 4.1 does not properly handle RPC commands, which…
CVE-2021-21994 — Critical (CVSS 9.8): SFCB (Small Footprint CIM Broker) as used in ESXi has an authentication bypass vulnerability. A malicious actor with…
CVE-2020-3992 — Critical (CVSS 9.8): OpenSLP as used in VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202010401-SG, 6.5 before…
CVE-2019-5544 — Critical (CVSS 9.8): OpenSLP as used in ESXi and the Horizon DaaS appliances has a heap overwrite issue. VMware has evaluated the severity…
CVE-2010-0211 — Critical (CVSS 9.8): The slap_modrdn2mods function in modrdn.c in OpenLDAP 2.4.22 does not check the return value of a call to the…

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CVE-2024-42479 — Critical (CVSS 10.0): llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause…
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