CYBERSECURITYTRACKER
Vulnerabilities

CVE-2025-22225

VMware ESXi: Out-of-bounds Write

What it is

Reported

VMware ESXi contains an arbitrary write vulnerability. Successful exploitation allows an attacker with privileges within the VMX process to trigger an arbitrary kernel write leading to an escape of the sandbox.

Source reported · Source: NVD · Complete source description.
Dates
Source last published: · Source last updated:

What is affected

Reported

VMware; ESXi. Product-level identification only; no affected-version conclusion is available from this field.

Source reported · Source: NVD
Dates
Source last published: · Source last updated:

Urgency and basis

Tracker computed

Act now

Current priority score and EPSS: loading from the tracker record. They are read when this page loads and are not shown without JavaScript. They change daily and are not part of "Source last updated".

Tracker decision tier from the evidence detailed below
Dates
Source last updated:

Exploitation evidence

Reported

Active exploitation · CISA KEV · VulnCheck KEV · ENISA exploited-vulnerability catalog

Source reported
Dates
Active since: · CISA KEV added: · VulnCheck KEV added: · ENISA added: · Source last updated:

What to do

Reported

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

Source remediation ↗
Source reported · Tracked source remediation field
Dates
Source last updated:

Detection and validation

Mapped metadata availability only. These signals do not change priority.

  • Sigma

    Exploiting CVE-2019-1388. Level: critical. Status: stable.

    Open Sigma metadata

  • Atomic

    Deploy container using nsenter container escape. Executor: sh. Elevation: not reported.

    Open Atomic metadata

  • Nuclei

    Not mapped by tracked sources.

  • Metasploit

    Not mapped by tracked sources.

Evidence detail

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Glossary

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