SB2025052749 - Privilege escalation vulnerabilities in Xen Windows PV drivers



SB2025052749 - Privilege escalation vulnerabilities in Xen Windows PV drivers

Published: May 27, 2025

Security Bulletin ID SB2025052749
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Exposed dangerous method or function (CVE-ID: CVE-2025-27462)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to exposure of various facilities to the userspace in Windows PV drivers. A local unprivileged user on the guest OS can escalate privileges within he operating system.


2) Exposed dangerous method or function (CVE-ID: CVE-2025-27463)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to exposure of various facilities to the userspace in Windows PV drivers. A local unprivileged user on the guest OS can escalate privileges within he operating system.


3) Exposed dangerous method or function (CVE-ID: CVE-2025-27464)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to exposure of various facilities to the userspace in Windows PV drivers. A local unprivileged user on the guest OS can escalate privileges within he operating system.


Remediation

Install update from vendor's website.