CVE-2026-48563: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability (CWE-416) involves a use-after-free condition in the Remote Desktop Client on Windows 10 Version 1809 (build 10.0.17763.0). Exploitation could allow an attacker to execute arbitrary code remotely without privileges, though user interaction is required. The vulnerability has been assigned a CVSS 3.1 base score of 7.5, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an unauthorized attacker to execute arbitrary code remotely on the affected system, potentially leading to full compromise of confidentiality, integrity, and availability. The attack requires network access and user interaction, and the attack complexity is high.
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
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-416) involves a use-after-free condition in the Remote Desktop Client on Windows 10 Version 1809 (build 10.0.17763.0). Exploitation could allow an attacker to execute arbitrary code remotely without privileges, though user interaction is required. The vulnerability has been assigned a CVSS 3.1 base score of 7.5, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an unauthorized attacker to execute arbitrary code remotely on the affected system, potentially leading to full compromise of confidentiality, integrity, and availability. The attack requires network access and user interaction, and the attack complexity is high.
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: 06/09/2026, 17:27:43 UTC
Last enriched: 07/29/2026, 22:07:56 UTC
Last updated: 07/31/2026, 21:26:45 UTC
Views: 72
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.