https://seclists.org/oss-sec/2025/q3/158: Xen Security Advisory 473 v2 (CVE-2025-58144,CVE-2025-58145) - Arm issues with page fcounting
Published Sep 9, 2025
·Updated
Affected Software
1 affected component
XEN Xen Hypervisor=2
Frequently Asked Questions
1
What is the severity of CVE-2025-58144 and CVE-2025-58145?
CVE-2025-58144 and CVE-2025-58145 are classified as high severity vulnerabilities in the Xen Hypervisor.
2
What do CVE-2025-58144 and CVE-2025-58145 exploit?
CVE-2025-58144 and CVE-2025-58145 exploit weaknesses in page refcounting on Arm architectures within the Xen Hypervisor.
3
How do I fix CVE-2025-58144 and CVE-2025-58145?
To mitigate CVE-2025-58144 and CVE-2025-58145, users should apply the latest patches provided by Xen.
4
Are there any workarounds for CVE-2025-58144 and CVE-2025-58145?
There are no documented workarounds for CVE-2025-58144 and CVE-2025-58145; patching is recommended.
5
How can I determine if my system is affected by CVE-2025-58144 and CVE-2025-58145?
You can determine if your system is affected by checking if you are running a vulnerable version of the Xen Hypervisor.