URGENT: On April 24, 2026, researchers identified 89 vulnerabilities in XAPI. No patches are currently available. A full system rebuild is advised due to the foundational nature of these flaws.
Vulnerability Overview
The latest audit reveals 89 flaws across the XAPI codebase (dating back to 2006). These allow authenticated vm-admin users to execute cross-hypervisor lateral movement and storage protocol injection without triggering security alerts.
Severity Distribution:
- 5 Critical
- 28 High
- 46 Medium
- 10 Low
Network Discovery (runZero)
Use these queries to inventory your hypervisor environment:
Locate XAPI-affected assets:os:="Citrix XenServer"
Locate legacy Citrix/XenServer assets:(product:citrix and type:hypervisor) or product:xenserver
Legacy Vulnerability Reminders
Ensure your environment is also audited for previous disclosures, including CVE-2024-45817 (Deadlock risk) and CVE-2022-24805/9 (SNMP service crashes). Limit management interface access to reduce your attack surface until architectural rebuilds can be performed.
About runZero
runZero, a network discovery and asset inventory solution, was founded in 2018 by HD Moore, the creator of Metasploit. HD envisioned a modern active discovery solution that could find and identify everything on a network–without credentials. As a security researcher and penetration tester, he often employed benign ways to get information leaks and piece them together to build device profiles. Eventually, this work led him to leverage applied research and the discovery techniques developed for security and penetration testing to create runZero.
About Version 2 Limited
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Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.