CVE-2026-48563: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability is a heap-based buffer overflow caused by a use-after-free condition in the Remote Desktop Client on Windows 10 Version 1809 (build 10.0.17763.0). An attacker who successfully exploits this flaw could execute arbitrary code remotely without privileges, requiring user interaction. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation could lead to remote code execution with high impact on confidentiality, integrity, and availability. The attacker does not require privileges but does require user interaction. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48563 to remediate this vulnerability.
CVE-2026-48563: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Description
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a heap-based buffer overflow caused by a use-after-free condition in the Remote Desktop Client on Windows 10 Version 1809 (build 10.0.17763.0). An attacker who successfully exploits this flaw could execute arbitrary code remotely without privileges, requiring user interaction. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation could lead to remote code execution with high impact on confidentiality, integrity, and availability. The attacker does not require privileges but does require user interaction. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48563 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-21T20:00:35.245Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48563","vendor":"Microsoft"}]
Threat ID: 6a284d0f8dd33fbd8566589e
Added to database: 6/9/2026, 5:27:43 PM
Last enriched: 6/9/2026, 5:42:07 PM
Last updated: 6/10/2026, 5:09:45 AM
Views: 5
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