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CVE-2025-58147— x86: Incorrect input sanitisation in Viridian hypercalls

Quick assessment

Affected
Xen Xen
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Xen是Xen开源的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。 Xen存在安全漏洞，该漏洞源于边界检查错误，可能导致越界读取和写入。

AI Predicted 8.8 Difficulty: Moderate EPSS 0.36% · P28

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2025-58147

Vulnerability Information
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Vulnerability Title
x86: Incorrect input sanitisation in Viridian hypercalls
Source: CVE Program / CVE List V5
Vulnerability Description
[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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Xen 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Xen是Xen开源的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。 Xen存在安全漏洞，该漏洞源于边界检查错误，可能导致越界读取和写入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Xen Xen consult Xen advisory XSA-475 -

II. Public POCs for CVE-2025-58147

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III. Intelligence Information for CVE-2025-58147

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Vendor Advisories for CVE-2025-58147 (1)

Same Patch Batch · Xen · 2025-10-31 · 3 CVEs total

CVE-2025-58149 Incorrect removal of permissions on PCI device unplug
CVE-2025-58148 x86: Incorrect input sanitisation in Viridian hypercalls

IV. Related Vulnerabilities

Same product: Xen
Same vendor: Xen

V. Comments for CVE-2025-58147

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