Track vulnerabilities like this one. Sign up free to get alerted when software you use is affected.
6.2

Windows VBS Enclave: Unauthorized Local Data Disclosure

CVE-2026-20935 · published 9 months ago
Summary

Attackers can access sensitive information on a Windows system by exploiting a weakness in the Windows Virtualization-Based Security (VBS) Enclave. This could lead to unauthorized disclosure of confidential data. Affected systems should be patched immediately to prevent this issue.

What to do
  • Update microsoft windows_11_23h2 to version 10.0.22631.6491 or later.
  • Update microsoft windows_11_24h2 to version 10.0.26100.7623 or later.
  • Update microsoft windows_11_25h2 to version 10.0.26200.7623 or later.
Affected software
VendorProductAffected versions
microsoft windows_11_23h2 < 10.0.22631.6491
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
microsoft windows_11_24h2 < 10.0.26100.7623
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
microsoft windows_11_25h2 < 10.0.26200.7623
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
Original advisory text
Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an unauthorized attacker to disclose information locally.
Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an unauthorized attacker to disclose information locally.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
6.2 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-822Untrusted Pointer Dereference
Timeline
Published13 Jan 2026
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2026-20935 · NVD
Track software like this
Free during beta