CVE-2026-20929
Unknown Unknown - Not Provided
Improper Access Control in Windows HTTP.sys Enables Privilege Escalation

Publication date: 2026-01-13

Last updated on: 2026-01-13

Assigner: Microsoft Corporation

Description
Improper access control in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network.
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Meta Information
Published
2026-01-13
Last Modified
2026-01-13
Generated
2026-06-16
AI Q&A
2026-01-14
EPSS Evaluated
2026-06-15
NVD
CVE-2026-20929
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft http.sys *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
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Executive Summary

This vulnerability is an improper access control issue in Windows HTTP.sys that allows an authorized attacker to elevate their privileges over a network. [1]

Impact Analysis

An attacker who is already authorized can exploit this vulnerability to gain higher privileges, potentially leading to full control over the affected system. [1]

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