CVE-2025-58144highCWE-476

CVE-2025-58144: high-severity vulnerability in Xen

Arm issues with page refcounting

Published · Updated

Follow this CVE+ Monitor Xen+ Monitor xen

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.5%
In short

A software bug causes the system to try using a memory address that doesn't exist (NULL pointer), which crashes the application. This happens when handling pages that belong to other domains, making the system unstable.

Technical detail

A NULL pointer dereference in page refcounting occurs due to an incorrect assertion when mapping pages from other domains. The vulnerability exists in release builds where the assertion is bypassed, leading to a crash when the code attempts to dereference an invalid pointer without proper validation.

Summary generated and translated by AI from the official description.
[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] There are two issues related to the mapping of pages belonging to other domains: For one, an assertion is wrong there, where the case actually needs handling. A NULL pointer de-reference could result on a release build. This is CVE-2025-58144. And then the P2M lock isn't held until a page reference was actually obtained (or the attempt to do so has failed). Otherwise the page can not only change type, but even ownership in between, thus allowing domain boundaries to be violated. This is CVE-2025-58145.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Xen · Xen
Related CVEs — Xen

In the same product, most dangerous first.

CVE-2024-31142HIGHx86: Incorrect logic for BTC/SRSO mitigationsEPSS 17.4%CVE-2024-2201MEDIUMCVE-2024-2201EPSS 8.8%CVE-2023-46842MEDIUMx86 HVM hypercalls may trigger Xen bug checkEPSS 8.5%CVE-2024-2193MEDIUMSpeculative Race Condition impacts modern CPU architectures that support speculative execution, also known as GhostRace.EPSS 1.3%CVE-2025-1713HIGHdeadlock potential with VT-d and legacy PCI device pass-throughEPSS 0.9%CVE-2023-46839MEDIUMpci: phantom functions assigned to incorrect contextsEPSS 0.8%