VDB
ALPINE-CVE-2025-27466
ALPINE-CVE-2025-27466
PUBLISHED
CVSS 9.800000190734863 CRITICAL
[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.
Risk Scores
CVSS v3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.23 | xen | 4.14.0-r3, 4.12.0-r2, 4.12.0-r1 |
| Alpine:v3.22 | xen | 4.18.2-r1, 4.18.2-r2, 4.19.0-r0 |
| Alpine:v3.19 | xen | 0, 4.0.1-r0, 4.0.1-r1 |
| Alpine:v3.20 | xen | 4.9.1-r3, 4.9.1-r2, 4.9.1-r1 |
| Alpine:v3.21 | xen | 4.1.2-r4, 4.1.2-r3, 4.1.2-r12 |
Timeline
- Sep 11, 2025 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch