Access Control Vulnerability in Xen Hypervisor Affects Guest Configuration Data Retrieval
CVE-2026-62429

6.5MEDIUM

Key Information:

Vendor

Xen Project
Status
Xen Project
Vendor
CVE Published:
28 July 2026

What is CVE-2026-62429?

This vulnerability allows unauthorized access to the vNUMA configuration data during the domain destruction process in the Xen Hypervisor. The lack of synchronization between the retrieval and cleanup of configuration information managed by the device model creates a security concern, potentially exposing sensitive data even after an attempted domain termination.

Affected Version(s)

Xen consult Xen advisory XSA-502

References

https://xenbits.xenproject.org/xsa/advisory-502.html

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered by Teddy Astie of Vates.
.