CVE-2026-20829 | Severity.io

Description

Out-of-bounds read in Windows TPM allows an authorized attacker to disclose information locally.

Related CPE's

windows_10_1809

Vulnerable

windows_10_21h2

Vulnerable

windows_10_22h2

Vulnerable

windows_11_23h2

Vulnerable

windows_11_24h2

Vulnerable

windows_11_25h2

Vulnerable

windows_server_2019

Vulnerable

windows_server_2022

Vulnerable

windows_server_2022_23h2

Vulnerable

windows_server_2025

Vulnerable

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20829

Vendor Advisory

Weaknesses

[email protected]

Primary

CWE-125

CVSS impact metrics

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

5.5 · Medium

Information

Source identifier

[email protected]

Vulnerability status

Analyzed

Published

2026-01-13T18:16:10.657Z

44 hours ago

Last modified

2026-01-15T13:07:28.967Z

2 hours ago