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NVD / CVE Program· CNA XEN

CVE-2025-58147: x86: Incorrect input sanitisation in Viridian hypercalls

Noroxi assessment

Priority: Monitor (action score 30/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.38% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: xen (Alpine:v3.19) 4.18.5-r3; xen (Alpine:v3.21) 4.19.3-r2; xen (Alpine:v3.22) 4.20.1-r2.

Low priority for now. Upgrade to xen (Alpine:v3.19) 4.18.5-r3; xen (Alpine:v3.21) 4.19.3-r2; xen (Alpine:v3.22) 4.20.1-r2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

[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.

HighCVSS 7.5 · v3.1—No exploit Fix available
Published
Oct 31, 2025
Updated
Oct 19, 2026
EPSS
0.3% · 31th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-58147

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
xenxen

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • xen xen4.15.0 and later

Versions reported by the vendor

Affected version ranges reported by the assigning authority (XEN). Independent of NVD's CPE analysis and usually ahead of it.

  • Xen Xen

    • consult Xen advisory XSA-475unknown

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.19xenfrom 4.15.0 · before 4.18.5-r34.18.5-r3
Alpine:v3.21xenfrom 4.15.0 · before 4.19.3-r24.19.3-r2
Alpine:v3.22xenfrom 4.15.0 · before 4.20.1-r24.20.1-r2
Debian:12xenbefore 4.17.5+72-g01140da4e8-14.17.5+72-g01140da4e8-1
Debian:13xenbefore 4.20.2+7-g1badcf5035-0+deb13u14.20.2+7-g1badcf5035-0+deb13u1
Debian:14xenbefore 4.20.2+7-g1badcf5035-14.20.2+7-g1badcf5035-1
openSUSE:Leap 15.6xenbefore 4.18.5_08-150600.3.34.24.18.5_08-150600.3.34.2
openSUSE:Leap 15.6xenbefore 4.18.5_06-150600.3.31.24.18.5_06-150600.3.31.2
openSUSE:Tumbleweedxenbefore 4.20.1_06-1.14.20.1_06-1.1
SUSE:Linux Enterprise Micro 5.3xenbefore 4.16.7_04-150400.4.75.14.16.7_04-150400.4.75.1
SUSE:Linux Enterprise Micro 5.5xenbefore 4.17.5_12-150500.3.53.14.17.5_12-150500.3.53.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6xenbefore 4.18.5_08-150600.3.34.24.18.5_08-150600.3.34.2
SUSE:Linux Enterprise Module for Basesystem 15 SP6xenbefore 4.18.5_06-150600.3.31.24.18.5_06-150600.3.31.2
SUSE:Linux Enterprise Module for Basesystem 15 SP7xenbefore 4.20.1_06-150700.3.14.14.20.1_06-150700.3.14.1

Same product

xen: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-10921The grant-table feature in Xen through 4.8.x does not ensure sufficient type counts for a GNTMAP_device_map and GNTMAP_host_map mapping, whi
    41Plan
  • CVE-2017-10920The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host
    41Plan
  • CVE-2017-10918Xen through 4.8.x does not validate memory allocations during certain P2M operations, which allows guest OS users to obtain privileged host
    41Plan

Published before and after this one in the same product

  • ← EarlierCVE-2025-58144Sep 11, 2025 · Arm issues with page refcounting
    30Monitor
  • ← EarlierCVE-2025-58145Sep 11, 2025 · Arm issues with page refcounting
    30Monitor
  • Later →CVE-2025-58148Oct 31, 2025 · x86: Incorrect input sanitisation in Viridian hypercalls
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:xen4.18.5-r3 · Alpine:v3.19Package registry (OSV)
debian:xen4.17.5+72-g01140da4e8-1 · Debian:12Package registry (OSV)
opensuse:xen4.18.5_06-150600.3.31.2 · openSUSE:Leap 15.6Package registry (OSV)
suse:xen4.18.5_06-150600.3.31.2 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:xen4.20.1_06-150700.3.14.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-581480 days apartx86: Incorrect input sanitisation in Viridian hypercalls
    30Monitor
  • CVE-2026-42494270 days apartbuffer overruns in libfsimage iso9660 handling
    24Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records