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NVD / CVE Program· CNA vmware

CVE-2025-22225: VMware ESXi contains an arbitrary write vulnerability.

Noroxi assessment

Priority: This week (action score 62/100)

  • CISA has confirmed exploitation in the wild (Mar 4, 2025); it is known to be used in ransomware campaigns. Remediation deadline for US federal agencies: Mar 25, 2025.
  • Probability of exploitation in the next 30 days: 1% (FIRST EPSS); higher than 63.5% of all records.
  • Someone with local access to the system can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Don’t wait for the next maintenance window. Until a fix is released, restrict access to the affected component and follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

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.

HighCVSS 8.2 · v3.1KEVWeaponized No fix recorded
Published
Mar 4, 2025
Updated
Aug 4, 2026
EPSS
1.0% · 63th percentile

Report tools

JSON

Action score

62

This week

Don’t wait for the next maintenance window.

CVSS
32 / 40 · 8.2 / 10
CISA KEV
30 / 30 · Listed
EPSS
0 / 30 · 1.0%

CISA SSVC decision

Exploitation
active
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
8.2
CNA · vmware
8.2
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Mar 4, 2025. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Mar 25, 2025.

Known to be used in ransomware campaigns.

Get told when this record changes

  • In CISA KEV: exploitation in the wild confirmed
  • Weaponized exploit exists
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-22225

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
vmwareesxi
vmwarecloud foundation
vmwaretelco cloud infrastructure
vmwaretelco cloud platform

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • vmware cloud foundationall versions
  • vmware esxi7.0
  • vmware esxi8.0
  • vmware telco cloud infrastructure2.2
  • vmware telco cloud infrastructure2.5
  • vmware telco cloud infrastructure2.7
  • vmware telco cloud infrastructure3.0
  • vmware telco cloud platform2.0
  • vmware telco cloud platform2.5
  • vmware telco cloud platform2.7
  • vmware telco cloud platform3.0
  • vmware telco cloud platform4.0
  • vmware telco cloud platform4.0.1
  • vmware telco cloud platform5.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (vmware). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a VMware Cloud Foundation

    • 5.x, 4.5.xaffected

  • n/a VMware ESXi

    • 8.0 and later · before ESXi80U3d-24585383affected
    • 8.0 and later · before ESXi80U2d-24585300affected
    • 7.0 and later · before ESXi70U3s-24585291affected

  • n/a VMware Telco Cloud Infrastructure

    • 3.x, 2.xaffected

  • n/a VMware Telco Cloud Platform

    • 5.x, 4.x, 3.x, 2.xaffected

Same product

vmware: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-22224VMware ESXi, and Workstation contain a TOCTOU (Time-of-Check Time-of-Use) vulnerability that leads to an out-of-bounds write.KEV
    62This week
  • CVE-2025-22226VMware ESXi, Workstation, and Fusion contain an information disclosure vulnerability due to an out-of-bounds read in HGFS.KEV
    54Plan
  • CVE-2026-41709ESX insufficient logging vulnerabilityKEV
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2020-3982Oct 20, 2020 · VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202008101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x), Fusi
    30Monitor
  • ← EarlierCVE-2020-3995Oct 20, 2020 · In VMware ESXi (6.7 before ESXi670-201908101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x before 15.1.0), Fusion (11.x before 11.
    21Monitor
  • Later →CVE-2025-41226May 20, 2025 · Guest Operations Denial-of-Service Vulnerability
    27Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. CISA KEVsame day
  2. Published
  3. TodayNov 8, 2026+614 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-41236133 days apartVMXNET3 integer-overflow vulnerability
    38Monitor
  • CVE-2025-41238133 days apartPVSCSI heap-overflow vulnerability
    37Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Local
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records