CVE-2026-20929: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1607
Improper access control in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-20929) affects Windows 10 Version 1607 (build 10.0.14393.0) and is classified under CWE-284 (Improper Access Control). It resides in the Windows HTTP.sys component, which handles HTTP requests. The flaw permits an attacker with some level of authorization to escalate privileges remotely via network access. The CVSS v3.1 base score is 7.5, indicating high severity, with attack vector network, high attack complexity, low privileges required, no user interaction, and impacts on confidentiality, integrity, and availability. Microsoft has released a patch to remediate this vulnerability.
Potential Impact
An authorized attacker exploiting this vulnerability can elevate their privileges on the affected Windows 10 system remotely over the network. This could lead to full system compromise, including unauthorized access to sensitive data, modification of system settings, and disruption of service. There are no known exploits in the wild at this time.
Mitigation Recommendations
A patch is available for this vulnerability and should be applied promptly to affected systems running Windows 10 Version 1607. Since this is not a cloud service, remediation depends on applying the vendor-provided update. No additional mitigations are indicated by the vendor advisory.
CVE-2026-20929: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1607
Description
Improper access control in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-20929) affects Windows 10 Version 1607 (build 10.0.14393.0) and is classified under CWE-284 (Improper Access Control). It resides in the Windows HTTP.sys component, which handles HTTP requests. The flaw permits an attacker with some level of authorization to escalate privileges remotely via network access. The CVSS v3.1 base score is 7.5, indicating high severity, with attack vector network, high attack complexity, low privileges required, no user interaction, and impacts on confidentiality, integrity, and availability. Microsoft has released a patch to remediate this vulnerability.
Potential Impact
An authorized attacker exploiting this vulnerability can elevate their privileges on the affected Windows 10 system remotely over the network. This could lead to full system compromise, including unauthorized access to sensitive data, modification of system settings, and disruption of service. There are no known exploits in the wild at this time.
Mitigation Recommendations
A patch is available for this vulnerability and should be applied promptly to affected systems running Windows 10 Version 1607. Since this is not a cloud service, remediation depends on applying the vendor-provided update. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-12-04T20:04:16.336Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69668ae3a60475309f9ae1d8
Added to database: 1/13/2026, 6:11:47 PM
Last enriched: 4/3/2026, 12:50:00 PM
Last updated: 5/10/2026, 2:22:07 PM
Views: 78
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.