CVE-2025-62627: Untrusted Pointer in VMware ESXi

The untrusted pointer dereference poses a significant threat to the confidentiality and availability of data within ESXi environments. An attacker controlling an unprivileged VM could exploit this vulnerability to read sensitive information stored in kernel memory or the memory of other VMs. This could include credentials, encryption keys, or other confidential data. The ability to read memory from co-located guest VMs expands the potential attack surface, allowing an attacker to compromise multiple VMs simultaneously. This vulnerability highlights the importance of robust memory protection mechanisms within hypervisors.

1. Veröffentlicht2026-05-13

Due to the lack of a specific fixed version, immediate mitigation strategies are crucial. Administrators should review VMware's security advisories for updates. As a temporary workaround, consider isolating VMs with sensitive data from less trusted VMs. Implement strict access controls to limit the privileges of unprivileged VMs. Monitor system logs for any unusual activity or signs of memory access attempts. After a patch is released by VMware, apply it promptly and verify the fix by confirming the untrusted pointer dereference is resolved using debugging tools or vulnerability scanners.