CVE-2025-58147

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Some Viridian hypercalls can specify a mask of vCPU IDs as an input, in one of three formats. Xen has boundary checking bugs with all three formats, which can cause out-of-bounds reads and writes while processing the inputs. * CVE-2025-58147. Hypercalls using the HV_VP_SET Sparse format can cause vpmask_set() to write out of bounds when converting the bitmap to Xen's format. * CVE-2025-58148. Hypercalls using any input format can cause send_ipi() to read d->vcpu[] out-of-bounds, and operate on a wild vCPU pointer.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://xenbits.xenproject.org/xsa/advisory-475.html	Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/10/21/1	Mailing List Patch Third Party Advisory
http://xenbits.xen.org/xsa/advisory-475.html	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-10-31 12:15

Updated : 2026-01-14 22:03

NVD link : CVE-2025-58147

Mitre link : CVE-2025-58147

CVE.ORG link : CVE-2025-58147

JSON object : View

Products Affected

xen

xen

CWE

CWE-125

Out-of-bounds Read

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