CVE-2026-20829 — Out-of-bounds Read in Microsoft Windows 10 Version 1809

CWE-125 — Out-of-bounds Read5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 87.91%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
17
Microsoft Windows 10 Version 1809Microsoft Windows 10 Version 21h2Microsoft Windows 10 Version 22h2+14 more
Timeline
PublishedJan 13

Description

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

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NExploitability: 1.8 | Impact: 3.6

Affected Packages17 packages

▶NVDmicrosoft/windows< 10.0.17763.8276+3
▶NVDmicrosoft/windows_10_1809< 10.0.17763.8276
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.6809
▶NVDmicrosoft/windows_10_22h2< 10.0.19045.6809
▶NVDmicrosoft/windows_11_23h2< 10.0.22631.6491

🔴Vulnerability Details

2
GHSA
GHSA-cfh3-7cxj-vmgg: Out-of-bounds read in Windows TPM allows an authorized attacker to disclose information locally↗2026-01-13
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CVEList
TPM Trustlet Information Disclosure Vulnerability↗2026-01-13
▶

📋Vendor Advisories

1
Microsoft
TPM Trustlet Information Disclosure Vulnerability↗2026-01-13
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-20829 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-20829 — Out-of-bounds Read in Microsoft | cvebase