CVE-2026-20938 — Untrusted Pointer Dereference in Microsoft Windows 11 Version 22h3

CWE-822 — Untrusted Pointer Dereference5 documents5 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 89.94%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Microsoft Windows 11 Version 22h3Microsoft Windows 11 Version 23h2Microsoft Windows 11 Version 24h2+4 more
Timeline
PublishedJan 13

Description

Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages7 packages

▶NVDmicrosoft/windows_11_23h2< 10.0.22631.6491
▶NVDmicrosoft/windows_11_24h2< 10.0.26100.7623
▶NVDmicrosoft/windows_11_25h2< 10.0.26200.7623
▶CVEListV5microsoft/windows_11_version_22h310.0.22631.0 — 10.0.22631.6491
▶CVEListV5microsoft/windows_11_version_23h210.0.22631.0 — 10.0.22631.6491

🔴Vulnerability Details

2
CVEList
Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability↗2026-01-13
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GHSA
GHSA-8hj8-3hcm-wr5q: Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally↗2026-01-13
▶

📋Vendor Advisories

1
Microsoft
Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability↗2026-01-13
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-20938 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-20938 — Untrusted Pointer Dereference | cvebase