CVE-2026-20832: CWE-415: Double Free in Microsoft Windows 10 Version 1607
Windows Remote Procedure Call Interface Definition Language (IDL) Elevation of Privilege Vulnerability
AI Analysis
Technical Summary
This vulnerability (CVE-2026-20832) is a double free issue classified under CWE-415 affecting the Windows Remote Procedure Call IDL in Windows 10 Version 1607 (build 10.0.14393.0). The flaw allows an attacker with local access and low privileges to potentially execute an elevation of privilege attack, gaining higher system rights. The CVSS v3.1 base score is 7.8, indicating high severity, with attack vector local, low complexity, no user interaction, and high impact on confidentiality, integrity, and availability. Microsoft has released a patch to remediate this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow a local attacker with limited privileges to elevate their privileges to a higher level, potentially gaining full control over the affected system. The impact includes complete compromise of confidentiality, integrity, and availability of the system. No known exploits have been reported in the wild.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 1607 (build 10.0.14393.0) to remediate this issue. Since this is not a cloud service, remediation depends on applying the patch on affected systems.
CVE-2026-20832: CWE-415: Double Free in Microsoft Windows 10 Version 1607
Description
Windows Remote Procedure Call Interface Definition Language (IDL) Elevation of Privilege Vulnerability
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-20832) is a double free issue classified under CWE-415 affecting the Windows Remote Procedure Call IDL in Windows 10 Version 1607 (build 10.0.14393.0). The flaw allows an attacker with local access and low privileges to potentially execute an elevation of privilege attack, gaining higher system rights. The CVSS v3.1 base score is 7.8, indicating high severity, with attack vector local, low complexity, no user interaction, and high impact on confidentiality, integrity, and availability. Microsoft has released a patch to remediate this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow a local attacker with limited privileges to elevate their privileges to a higher level, potentially gaining full control over the affected system. The impact includes complete compromise of confidentiality, integrity, and availability of the system. No known exploits have been reported in the wild.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 1607 (build 10.0.14393.0) to remediate this issue. Since this is not a cloud service, remediation depends on applying the patch on affected systems.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-12-03T05:54:20.375Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69668adda60475309f9adfed
Added to database: 1/13/2026, 6:11:41 PM
Last enriched: 4/3/2026, 12:43:40 PM
Last updated: 5/8/2026, 11:35:43 PM
Views: 112
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