#VU121247 Untrusted Pointer Dereference in Windows - CVE-2026-20819

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Main Vulnerability Database Vulnerabilities #VU121247

#VU121247 Untrusted Pointer Dereference in Windows - CVE-2026-20819

Published: January 13, 2026


Vulnerability identifier: #VU121247
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-20819
CWE-ID: CWE-822
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Windows
Software vendor:
Microsoft

Description

The vulnerability allows a local user to gain access to sensitive information on the system.

The vulnerability exists due to untrusted pointer dereference in Windows Virtualization-Based Security (VBS). A local user can disclose sensitive information on the target system.


Remediation

Install updates from vendor's website.

External links