Buffer Overflow Vulnerability in Xen Project Hypervisor
CVE-2025-58150

8.8HIGH

Key Information:

Vendor

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

What is CVE-2025-58150?

A vulnerability in the Xen Project Hypervisor involving shadow mode tracing code allows guest-controlled data to exceed per-CPU variable limits. This issue stems from insufficient bounding on write operations, potentially leading to memory corruption and unauthorized access in a virtualized environment. Proper mitigation involves implementing patches to secure the affected versions.

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Deploy the Patch

Affected Version(s)

Xen consult Xen advisory XSA-477

References

https://xenbits.xenproject.org/xsa/advisory-477.html

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered by Jan Beulich of SUSE.
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