CVE-2026-96849: CWE-908: Use of Uninitialized Resource in Microsoft Windows 11 version 26H1
Description
CVE-2026-96849 is a medium severity vulnerability in Microsoft Windows 11 version 26H1 involving the use of an uninitialized resource in kernel-mode drivers. This flaw allows an authorized local attacker to disclose sensitive information. The vulnerability has a CVSS score of 5.5 and has been officially fixed by Microsoft.
CVSS v3.1
Score 5.5medium
Affected software
Microsoft
Windows 11 version 26H1
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-96849) involves the use of an uninitialized resource in Windows kernel-mode drivers in Windows 11 version 26H1. An authorized attacker with local access can exploit this flaw to disclose information. The issue is tracked under CWE-908. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can leverage this vulnerability to disclose sensitive information from the system. There is no impact on integrity or availability. No known exploits are reported in the wild.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the security update provided by Microsoft as detailed in their advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96849.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-23T18:05:21.200Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96849","vendor":"Microsoft"}]
Threat ID: 6ace857b2cdf04f656a004a0
Added to database: 10/13/2026, 19:24:43 UTC
Last enriched: 10/14/2026, 00:05:06 UTC
Last updated: 10/14/2026, 00:05:06 UTC
Views: 4
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