CVE-2026-85320: CWE-908: Use of Uninitialized Resource in Microsoft Windows 10 Version 1607
Description
CVE-2026-85320 is a vulnerability in Microsoft Windows 10 Version 1607 involving the use of an uninitialized resource in the Windows Print Spooler components. This flaw allows an authorized local attacker to disclose sensitive information. The vulnerability has a medium severity rating and a CVSS score of 5.5. Microsoft has issued an official fix to address this issue.
CVSS v3.1
Score 5.5medium
Affected software
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows 11 Version 26H2
Microsoft
Windows Server 2012
Microsoft
Windows Server 2012 (Server Core installation)
Microsoft
Windows Server 2012 R2
Microsoft
Windows Server 2012 R2 (Server Core installation)
Microsoft
Windows Server 2016
Microsoft
Windows Server 2016 (Server Core installation)
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-85320) involves the use of an uninitialized resource within the Windows Print Spooler components in Microsoft Windows 10 Version 1607 and related versions. An authorized attacker with local access can exploit this flaw to disclose information. The CVSS v3.1 base score is 5.5, reflecting a medium severity with attack vector local, low attack complexity, low privileges required, no user interaction, and high impact on confidentiality. 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 affected Windows Print Spooler components. There is no indication of impact on integrity or availability. No known exploits are reported in the wild.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the provided security updates as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85320 to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-03T17:01:56.594Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85320","vendor":"Microsoft"}]
Threat ID: 6ace852f2cdf04f6569fdf7d
Added to database: 10/13/2026, 19:23:27 UTC
Last enriched: 10/14/2026, 04:19:52 UTC
Last updated: 10/14/2026, 04:19:52 UTC
Views: 5
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