CVE-2025-58148: [This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to…
CVE-2025-58148 · Severity: high · CVSS 7.5 · Published 2025-10-31
[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.
No. Junglewise Threat Intelligence has no report of CVE-2025-58148 being exploited in the wild.
How severe is CVE-2025-58148?
High severity, with a CVSS score of 7.5, published 31 October 2025.
Which products and versions are affected?
Xen. The advisory does not name versions.
Is there a fix for CVE-2025-58148?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-58148?
Check whether you run Xen. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.