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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | >= 4.15.0 |
Related Weaknesses (CWE)
References
- https://xenbits.xenproject.org/xsa/advisory-475.htmlPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2025/10/21/1Mailing ListPatchThird Party Advisory
- http://xenbits.xen.org/xsa/advisory-475.htmlPatchVendor Advisory
FAQ
What is CVE-2025-58147?
CVE-2025-58147 is a vulnerability with a CVSS score of 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, i...
How severe is CVE-2025-58147?
CVE-2025-58147 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-58147?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.