CVE-2026-20876

MEDIUM EPSS 39.4%
Published Jan 13, 20265mo ago · Modified Jun 17, 20262w ago
6.7 CVSS 3.1
Medium
Find Similar
Published Jan 13, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

Description

Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.

CVSS Details

Base Score
6.7
Exploitability
0.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
39.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-122

Affected Products 5

VendorProductVersionRange
microsoftwindows_11_23h2* <10.0.22631.6491
microsoftwindows_11_24h2* <10.0.26100.7623
microsoftwindows_11_25h2* <10.0.26200.7623
microsoftwindows_server_2022_23h2* <10.0.25398.2092
microsoftwindows_server_2025* <10.0.26100.32230

References 1

  • msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20876
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.