CVE-2026-54997: CWE-908: Use of Uninitialized Resource in Microsoft Windows 10 Version 1607
Use of uninitialized resource in Windows SMB allows an authorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-54997) is classified as CWE-908 (Use of Uninitialized Resource) affecting Windows 10 Version 1607 (build 10.0.14393.0). It occurs within the SMB protocol implementation, where an uninitialized resource can be leveraged by an authorized local attacker to gain unauthorized information disclosure. The vulnerability does not allow for integrity or availability impact, only confidentiality is affected. Microsoft has released an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to disclose sensitive information due to the use of an uninitialized resource in the SMB service. The confidentiality impact is high, but there is no impact on integrity or availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided by Microsoft for Windows 10 Version 1607 (build 10.0.14393.0) as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54997.
CVE-2026-54997: CWE-908: Use of Uninitialized Resource in Microsoft Windows 10 Version 1607
Description
Use of uninitialized resource in Windows SMB allows an authorized attacker to disclose information locally.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-54997) is classified as CWE-908 (Use of Uninitialized Resource) affecting Windows 10 Version 1607 (build 10.0.14393.0). It occurs within the SMB protocol implementation, where an uninitialized resource can be leveraged by an authorized local attacker to gain unauthorized information disclosure. The vulnerability does not allow for integrity or availability impact, only confidentiality is affected. Microsoft has released an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to disclose sensitive information due to the use of an uninitialized resource in the SMB service. The confidentiality impact is high, but there is no impact on integrity or availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided by Microsoft for Windows 10 Version 1607 (build 10.0.14393.0) as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54997.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-16T14:10:05.869Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54997","vendor":"Microsoft"}]
Threat ID: 6a566f7e68715ace43e6bc28
Added to database: 07/14/2026, 17:18:54 UTC
Last enriched: 07/14/2026, 17:50:28 UTC
Last updated: 07/14/2026, 23:57:23 UTC
Views: 5
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