VMware ESXi Arbitrary Write Vulnerability
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.
What happened
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.
CISA lists it as exploited, added 04 Mar 2025.
Does it affect you
Names VMware ESXi. Enter the product and version you run to place it against the affected range the vendor published.
What to do
- Follow the vendor advisory for the fixed release and any interim mitigation.
support.broadcom.com - 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.gov
CISA’s notes for this entry:
Affected, as published to NVD
- vmware-esxi
- VMware ESXi: exactly 7.0
The record
- NVD status
- Analyzed
- Published
- 04 Mar 2025, last modified 04 Aug 2026 (NVD)
- Severity
- CVSS 3.1 base score 8.2, High — computed here from the vector; NVD states 8.2.
- Vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- Weakness
- CWE-787 Out-of-bounds Write, CWE-123 (NVD; names by MITRE)
- Exploitation
- Listed in CISA’s Known Exploited Vulnerabilities catalogue since 04 Mar 2025; federal remediation due 25 Mar 2025. CISA records known use in ransomware campaigns. CISA entry
- Exploit probability
- EPSS 1.0%, 63rd percentile — FIRST, scored 23 Oct 2026. FIRST EPSS
- Vendor
- VMware · ESXi (CISA)
References on the NVD record
Sources
The verdict above is computed from the products and versions you entered and the affected ranges the vendor published to NVD. It does not inspect your environment, and this site never reports a product as unaffected: why.