CVE-2025-58147

HIGH EPSS 26.6%
Published Oct 31, 20258mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Oct 31, 2025 8mo ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
26.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 1

VendorProductVersionRange
xenxen*≥4.15.0

References 3

  • openwall.com http://www.openwall.com/lists/oss-security/2025/10/21/1
    Mailing ListPatchThird Party Advisory
  • xenbits.xen.org http://xenbits.xen.org/xsa/advisory-475.html
    PatchVendor Advisory
  • xenbits.xenproject.org https://xenbits.xenproject.org/xsa/advisory-475.html
    PatchVendor Advisory

Remediation

  • openwall.com http://www.openwall.com/lists/oss-security/2025/10/21/1
    Mailing ListPatchThird Party Advisory
  • xenbits.xen.org http://xenbits.xen.org/xsa/advisory-475.html
    PatchVendor Advisory
  • xenbits.xenproject.org https://xenbits.xenproject.org/xsa/advisory-475.html
    PatchVendor Advisory