CVE-2026-20819: medium-severity vulnerability in Microsoft Windows 11 version 23H2
Windows Virtualization-Based Security (VBS) Information Disclosure Vulnerability
Published · Updated
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.5epss 0.6%
exploitation probability
0.6%top 56% of all CVEs
observed exploitation
nono source reports it
Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to disclose information locally.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Affected products
Microsoft · Windows 11 version 23H2Microsoft · Windows 11 Version 24H2Microsoft · Windows 11 Version 25H2Related CVEs — Microsoft Windows 11 version 23H2
In the same product, most dangerous first.
CVE-2025-33053HIGHInternet Shortcut Files Remote Code Execution VulnerabilityEPSS 87.0%KEVCVE-2024-43451MEDIUMNTLM Hash Disclosure Spoofing VulnerabilityEPSS 84.1%KEVCVE-2025-33073HIGHWindows SMB Client Elevation of Privilege VulnerabilityEPSS 82.7%KEVCVE-2024-30088HIGHWindows Kernel Elevation of Privilege VulnerabilityEPSS 68.2%KEVCVE-2024-43572HIGHMicrosoft Management Console Remote Code Execution VulnerabilityEPSS 66.7%KEVCVE-2025-24054MEDIUMNTLM Hash Disclosure Spoofing VulnerabilityEPSS 58.9%KEV