CVE-2025-58143

CRITICALNVD 9.89.8—Trending — 4 sources updated this week

9.8

[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:

A NULL pointer dereference in the updating of the reference TSC area.

This is CVE-2025-27466.

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.

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.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 22.7%
KEV: Not listed

Published

September 11, 2025

Last Modified

November 4, 2025

References (3)

security@xenhttps://xenbits.xenproject.org/xsa/advisory-472.html
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/09/09/1
af854a3a-2127-422b-91ae-364da2661108http://xenbits.xen.org/xsa/advisory-472.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-366

Data Freshness Timeline

(refreshed 12× in last 7d / 12× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 23:01 UTCEG score recompute
2026-05-29 23:01 UTCGHSA enrichment
2026-05-29 19:20 UTCOSV refresh
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-58143?

CVE-2025-58143 is a critical vulnerability published on September 11, 2025. [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…

When was CVE-2025-58143 disclosed?

CVE-2025-58143 was first published in the National Vulnerability Database on September 11, 2025, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-58143 actively exploited?

CVE-2025-58143 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-58143?

CVE-2025-58143 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2025-58143?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-58143, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-58143

📅 Published

🔄 Last Modified

🔗 References (3)