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The vulnerability of the trusted execution environment allows for attacks on the Virtualization-Based Security (VBS) Enclave of Windows operating systems, enabling attackers to increase their privileges.
🗓️ 15 Jan 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 1 Views
| Reporter | Title | Published | Views | Family All 18 |
|---|---|---|---|---|
 | CVE-2026-20938 | 13 Jan 202617:56 | – | attackerkb |
 | CVE-2026-20938 | 13 Jan 202618:01 | – | circl |
 | Microsoft Windows Virtualization-Based Security Enclave 安全漏洞 | 13 Jan 202600:00 | – | cnnvd |
 | CVE-2026-20938 | 13 Jan 202617:56 | – | cve |
 | CVE-2026-20938 Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability | 13 Jan 202617:56 | – | cvelist |
 | EUVD-2026-2135 | 13 Jan 202617:56 | – | euvd |
 | January 13, 2026—KB5073455 (OS Build 22631.6491) | 13 Jan 202616:00 | – | mskb |
| January 13, 2026—KB5074109 (OS Builds 26200.7623 and 26100.7623) | 13 Jan 202616:00 | – | mskb |
 | KLA90840 Multiple vulnerabilities were found in Microsoft Windows | 13 Jan 202600:00 | – | kaspersky |
 | Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability | 13 Jan 202616:00 | – | mscve |
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15 Jan 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 26.8
CVSS 37.8
EPSS0.00483