CVE-2023-34048: VMware vCenter Server Out-of-Bounds Write Vulnerability

Critical severity, CVSS 9.8. Actively exploited: in CISA KEV since 2024-01-22. EPSS: 99.4% chance of exploitation in the next 30 days.

vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger an out-of-bounds write potentially leading to remote code execution.

Affected products

• VMware vCenter Server: from 4.0, up to and including 5.5; version 7.0 only; version 8.0 only

Published 2023-10-25. Last modified 2026-06-17.