CVE-2025-22225 · netVigilance record NV25-0049
VMware ESXi Arbitrary Write
past due ransomware
What to do
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 deadline 2025-03-25 · passed 1 year 5 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
VMware ESXi. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-123.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 1 year 5 months ago
Sources
- NVD entry for CVE-2025-22225 nvd.nist.gov/vuln/detail/CVE-2025-22225
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- support.broadcom.com support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25390
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2025-22225