CVE-2026-50490: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
CVE-2026-50490 is a use-after-free vulnerability in Windows Installer on Microsoft Windows 10 Version 1607. This flaw allows an authorized local attacker to elevate privileges. The vulnerability has a high severity rating with a CVSS score of 7. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50490) involves a use-after-free condition in the Windows Installer component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access with low privileges but no user interaction. Successful exploitation could allow an attacker to elevate their privileges, impacting confidentiality, integrity, and availability. Microsoft has published an official fix for this issue.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges on the affected system. The CVSS vector indicates high impact on confidentiality, integrity, and availability. There are no known exploits in the wild 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-2026-50490 to remediate this vulnerability.
CVE-2026-50490: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
CVE-2026-50490 is a use-after-free vulnerability in Windows Installer on Microsoft Windows 10 Version 1607. This flaw allows an authorized local attacker to elevate privileges. The vulnerability has a high severity rating with a CVSS score of 7. An official fix is available from Microsoft.
CVSS v3.1
Score 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50490) involves a use-after-free condition in the Windows Installer component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access with low privileges but no user interaction. Successful exploitation could allow an attacker to elevate their privileges, impacting confidentiality, integrity, and availability. Microsoft has published an official fix for this issue.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges on the affected system. The CVSS vector indicates high impact on confidentiality, integrity, and availability. There are no known exploits in the wild 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-2026-50490 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:59:53.337Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50490","vendor":"Microsoft"}]
Threat ID: 6a5676a668715ace43f09634
Added to database: 07/14/2026, 17:49:26 UTC
Last enriched: 07/14/2026, 23:04:17 UTC
Last updated: 07/15/2026, 03:47:27 UTC
Views: 2
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.