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CVE-2025-58148

7.5 · HIGH

[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…

Published Oct 31, 2025CWE-125EPSS 0.38%

Overview

CVE-2025-58148 is a high-severity vulnerability. It was published on October 31, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refxenbits.xenproject.org/xsa/advisory-475.htmlRefwww.openwall.com/lists/oss-security/2025/10/21/1Refxenbits.xen.org/xsa/advisory-475.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-58148?

CVE-2025-58148 is a high-severity vulnerability. It was published on October 31, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-58148?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-58148?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-58148?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-58148 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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