CVE-2025-58148 Affecting xen package, versions <4.17.5+72-g01140da4e8-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.36% (29th percentile)

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  • Snyk IDSNYK-ECHOLATEST-XEN-18388959
  • published29 Jul 2026
  • disclosed31 Oct 2025

Introduced: 31 Oct 2025

CVE-2025-58148  (opens in a new tab)

How to fix?

Upgrade Echo:latest xen to version 4.17.5+72-g01140da4e8-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

[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 Base Scores

version 3.1