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Fencer Vulns
high 8.8

CVE-2025-58150 json

x86: buffer overrun with shadow paging + tracing

published 2026-01-28 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-206476

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 4%
public exploits
0
none known

Summary

Shadow mode tracing code uses a set of per-CPU variables to avoid cumbersome parameter passing. Some of these variables are written to with guest controlled data, of guest controllable size. That size can be larger than the variable, and bounding of the writes was missing.

Patch / fix

  • xen Debian 12 4.17.7-0+deb12u1
  • xen Debian 13 4.20.2+37-g61ff35323e-0+deb13u1
  • xen Debian 14 4.20.2+37-g61ff35323e-1

debian advisories DEBIAN-CVE-2025-58150

  • xen SLE Module for Server Applications 15 SP7, SLE Module for Basesystem 15 SP7 4.20.2_06-150700.3.25.1
  • xen SLE Micro 5.4, SLE Micro 5.3 4.16.7_06-150400.4.78.1
  • xen SLE Module for Server Applications 15 SP7, SLE Module for Basesystem 15 SP7 4.20.2_04-150700.3.22.1
  • xen openSUSE Leap 15.6 4.18.5_10-150600.3.37.1
  • xen SLE Micro 5.5 4.17.6_04-150500.3.59.1
  • xen SLE Micro 5.2 4.14.6_28-150300.3.94.1
  • xen SLES LTSS Extended Security 12 SP5 4.12.4_64-3.137.1

suse advisories SUSE-SU-2026:0589-1SUSE-SU-2026:0394-1SUSE-SU-2026:0329-1SUSE-SU-2026:0328-1SUSE-SU-2026:0306-1SUSE-SU-2026:0304-1

  • xen openSUSE Tumbleweed 4.21.0_04-1.1

opensuse advisories openSUSE-SU-2026:10118-1

  • xen Alpine 3.20 4.18.5-r4
  • xen Alpine 3.21 4.19.4-r1
  • xen Alpine 3.23, Alpine 3.22 4.20.2-r1
  • xen Alpine 3.24 4.21.0-r2

alpine advisories ALPINE-CVE-2025-58150

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-58150 updated cvss 8.8

xen: x86: buffer overrun with shadow paging + tracing

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
9 mo ago

Exploit prediction

0.15% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

  • Xen Xen

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.