CVE-2026-20837: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1809
Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability involves a heap-based buffer overflow in the Windows Media component of Windows 10 Version 1809. Exploitation requires local access and user interaction, but it can lead to high impact including confidentiality, integrity, and availability compromise. The vulnerability is tracked as CWE-122 and has been assigned CVE-2026-20837. The vendor has released a patch to fix this issue.
Potential Impact
Successful exploitation allows an unauthorized attacker with local access and user interaction to execute arbitrary code, potentially leading to full system compromise including data theft, system modification, or denial of service. The CVSS vector indicates low attack complexity and no privileges required, but user interaction is necessary.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 1809 (build 10.0.17763.0) to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-20837: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1809
Description
Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap-based buffer overflow in the Windows Media component of Windows 10 Version 1809. Exploitation requires local access and user interaction, but it can lead to high impact including confidentiality, integrity, and availability compromise. The vulnerability is tracked as CWE-122 and has been assigned CVE-2026-20837. The vendor has released a patch to fix this issue.
Potential Impact
Successful exploitation allows an unauthorized attacker with local access and user interaction to execute arbitrary code, potentially leading to full system compromise including data theft, system modification, or denial of service. The CVSS vector indicates low attack complexity and no privileges required, but user interaction is necessary.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 1809 (build 10.0.17763.0) to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
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: 69668adea60475309f9ae091
Added to database: 1/13/2026, 6:11:42 PM
Last enriched: 4/3/2026, 12:44:17 PM
Last updated: 5/10/2026, 9:18:53 AM
Views: 84
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