SEPTEMBER 18, 2026
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Case File

CVE-2025-27463

CRITICAL · CVSS 9.4 EPSS 0.16%

Source: NVD + CISA KEV + EPSS · Published 2026-07-09 · Last synced 2026-08-08

CyberRota Analysis

AI-Generated

The vulnerability affects Windows PV drivers, which expose certain facilities to userspace without proper security descriptors, allowing unprivileged users to access them. This could lead to unauthorized access and potential exploitation of system resources. Organizations using affected Windows systems should prioritize remediation to mitigate risks associated with unprivileged access.

CVE
CVE-2025-27463
Severity
CRITICAL
CVSS
9.4
EPSS
0.16%
Windows

Original NVD Description

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] The Windows PV drivers expose various facilities to userspace. Several of these have no security descriptor, and are therefore fully accessible to unprivileged users. These are: 1. XenCons, CVE-2025-27462 2. XenIface, CVE-2025-27463 3. XenBus, CVE-2025-27464