Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since March 4, 2025.
CVE-2025-22225
VMware ESXi Arbitrary Write Vulnerability
Added to KEV March 4, 2025
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2025-22225
- CWE
- CWE-123
- Affected products
- ESXi · VMware ESXi · VMware
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.
What it means for your business
VMware ESXi is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-22225). 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. CISA remediation due date: 2025-03-25. If you need help checking exposure, call (864) 335-9223.
Required action
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 due date: March 25, 2025
Sources
Related briefs
North Korean IT Workers Expanding Use of Facilitators, Broadening Recruitment
North Korean IT Workers Expanding Use of Facilitators, Broadening Recruitment — FBI IC3 industry advisory relevant to cyber risk. PremierePC monitors federal alerts for Upstate SC businesses. Read the source link for full guidance or open a ticket if you want help assessing impact.
- Vendor:FBI IC3
Windows Internet Information Services Denial of Service vulnerability
Windows Internet Information Services Denial of Service vulnerability (CVE-2026-97830) was added to Microsoft’s security update guidance. <p>Double free in Windows Internet Information Services allows an unauthorized attacker to deny service over a network.</p> If you need help checking exposure, call (864) 335-9223.
Microsoft OpenSSH for Windows Remote Code Execution vulnerability
Microsoft OpenSSH for Windows Remote Code Execution vulnerability (CVE-2026-97816) was added to Microsoft’s security update guidance. <p>Use after free in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.</p> If you need help checking exposure, call (864) 335-9223.
Windows Error Reporting Remote Code Execution vulnerability
Windows Error Reporting Remote Code Execution vulnerability (CVE-2026-97815) was added to Microsoft’s security update guidance. <p>Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.</p> If you need help checking exposure, call (864) 335-9223.
Need help patching?
PremierePC monitors KEV alerts for managed clients and helps teams prioritize remediation before attackers do.