CVE-2025-58143CRITICAL 9.8EPSS p26.1%

CVE-2025-58143CVE-2025-58143

Description

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] There are multiple issues related to the handling and accessing of guest memory pages in the viridian code: 1. A NULL pointer dereference in the updating of the reference TSC area. This is CVE-2025-27466. 2. A NULL pointer dereference by assuming the SIM page is mapped when a synthetic timer message has to be delivered. This is CVE-2025-58142. 3. A race in the mapping of the reference TSC page, where a guest can get Xen to free a page while still present in the guest physical to machine (p2m) page tables. This is CVE-2025-58143.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.34% probability of exploitation · percentile 26.1% · 2026-06-18T12:00:27Z
Published2025-09-11
Last modified2025-11-04

Underlying weaknesses· 1

CWE-366

References

  1. https://xenbits.xenproject.org/xsa/advisory-472.html
  2. http://www.openwall.com/lists/oss-security/2025/09/09/1
  3. http://xenbits.xen.org/xsa/advisory-472.html

1

TypeTargetConfidenceTier
WeaknessRace Condition within a Threadcwe-3660%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2025-58142
CVE
CVE-2025-27466
CVE
CVE-2025-61553
CVE
CVE-2025-58150
CVE
CVE-2026-45782
CVE
CVE-2025-59610
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.