CVE-2026-50455: CWE-908: Use of Uninitialized Resource in Microsoft Windows 10 Version 1607
CVE-2026-50455 is a medium severity vulnerability in Microsoft Windows 10 Version 1607 involving the use of an uninitialized resource in the Universal Plug and Play (upnp.dll) component. This flaw allows an authorized local attacker to disclose sensitive information. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50455) arises from the use of an uninitialized resource in the Universal Plug and Play (upnp.dll) component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). The flaw permits an attacker with local authorized access to disclose information, impacting confidentiality without affecting integrity or availability. The vulnerability has a CVSS 3.1 base score of 5.5, reflecting a medium severity level. Microsoft has released an official fix to remediate 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 upnp.dll. The impact is limited to confidentiality (high impact on confidentiality), with no effect on integrity or availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft to address this vulnerability. Users and administrators should apply the provided patch as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50455 to remediate the issue.
CVE-2026-50455: CWE-908: Use of Uninitialized Resource in Microsoft Windows 10 Version 1607
Description
CVE-2026-50455 is a medium severity vulnerability in Microsoft Windows 10 Version 1607 involving the use of an uninitialized resource in the Universal Plug and Play (upnp.dll) component. This flaw allows an authorized local attacker to disclose sensitive information. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50455) arises from the use of an uninitialized resource in the Universal Plug and Play (upnp.dll) component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). The flaw permits an attacker with local authorized access to disclose information, impacting confidentiality without affecting integrity or availability. The vulnerability has a CVSS 3.1 base score of 5.5, reflecting a medium severity level. Microsoft has released an official fix to remediate 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 upnp.dll. The impact is limited to confidentiality (high impact on confidentiality), with no effect on integrity or availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft to address this vulnerability. Users and administrators should apply the provided patch as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50455 to remediate the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:59:17.977Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50455","vendor":"Microsoft"}]
Threat ID: 6a5676a268715ace43f094fc
Added to database: 07/14/2026, 17:49:22 UTC
Last enriched: 07/14/2026, 23:33:13 UTC
Last updated: 07/14/2026, 23:33:13 UTC
Views: 2
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