CVE-2026-20811

HIGH EPSS 38.1%
Published Jan 13, 20265mo ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Jan 13, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

Description

Access of resource using incompatible type ('type confusion') in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
38.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-822
CWE-843

Affected Products 6

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* <10.0.20348.4648
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-2026-20811
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.