#VU115005 NULL pointer dereference in Xen - CVE-2025-58142
Published: September 9, 2025
Vulnerability identifier: #VU115005
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H/E:U/U:Green
CVE-ID: CVE-2025-58142
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Xen
Xen
Software vendor:
Xen Project
Xen Project
Description
The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error by assuming the SIM page is mapped when a synthetic timer message has to be delivered. A malicious guest can perform a denial of service (DoS) attack against the hypervisor.
Remediation
Install updates from vendor's website.