CVE-2025-27466

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Source
https://cve.org/CVERecord?id=CVE-2025-27466
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-27466.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-27466
Downstream
Related
Published
2025-09-11T14:15:41.413Z
Modified
2026-03-15T14:52:42.100231Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

[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.

References

Affected packages

Git /

Affected ranges

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-27466.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "4.13.0"
            },
            {
                "fixed": "4.17.0"
            }
        ]
    }
]