CVE-2026-20829: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1809
Out-of-bounds read in Windows TPM allows an authorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability (CWE-125) involves an out-of-bounds read in the Windows TPM on Windows 10 Version 1809 (build 10.0.17763.0). An attacker with local authorized access can exploit this flaw to disclose information by reading memory beyond allocated boundaries. The vulnerability does not allow privilege escalation, denial of service, or remote exploitation. The CVSS 3.1 vector indicates low attack complexity and requires local privileges without user interaction. Microsoft has released a patch to fix this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to disclose sensitive information from memory due to an out-of-bounds read in the TPM component. There is no impact on integrity or availability, and no known exploits are reported in the wild.
Mitigation Recommendations
A patch is available from Microsoft to remediate this vulnerability. It is recommended to apply the official update for Windows 10 Version 1809 to address this issue. No additional mitigations are specified.
CVE-2026-20829: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1809
Description
Out-of-bounds read in Windows TPM allows an authorized attacker to disclose information locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-125) involves an out-of-bounds read in the Windows TPM on Windows 10 Version 1809 (build 10.0.17763.0). An attacker with local authorized access can exploit this flaw to disclose information by reading memory beyond allocated boundaries. The vulnerability does not allow privilege escalation, denial of service, or remote exploitation. The CVSS 3.1 vector indicates low attack complexity and requires local privileges without user interaction. Microsoft has released a patch to fix this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to disclose sensitive information from memory due to an out-of-bounds read in the TPM component. There is no impact on integrity or availability, and no known exploits are reported in the wild.
Mitigation Recommendations
A patch is available from Microsoft to remediate this vulnerability. It is recommended to apply the official update for Windows 10 Version 1809 to address this issue. No additional mitigations are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-12-03T05:54:20.374Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69668adda60475309f9adfe4
Added to database: 1/13/2026, 6:11:41 PM
Last enriched: 4/3/2026, 12:43:15 PM
Last updated: 5/10/2026, 9:12:36 AM
Views: 82
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