CVE-2026-68843: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
CVE-2026-68843 is a use-after-free vulnerability in Microsoft Office Word on Windows 10 Version 1607 and other specified versions. It allows an authorized local attacker to disclose information. The vulnerability has a medium severity score of 5.5 and has been officially fixed by Microsoft.
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 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 involves a use-after-free condition in Microsoft Office Word on Windows 10 Version 1607 and other affected builds. An authorized attacker with local access can exploit this flaw to disclose sensitive information. The CVSS 3.1 base score is 5.5, reflecting a medium severity with local attack vector, low attack complexity, and low privileges required. The vulnerability does not impact integrity or availability but compromises confidentiality. Microsoft has released official fixes for all affected versions.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to disclose sensitive information on affected Windows 10 versions. There is no impact on system integrity or availability. No known exploits are reported in the wild.
Mitigation Recommendations
Microsoft has released official patches addressing this vulnerability. Users and administrators should apply the updates for their respective Windows 10 versions as listed in the affected versions to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-31T16:47:02.144Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68843","vendor":"Microsoft"}]
Threat ID: 6aa044d6acd9273b49fa7c7f
Added to database: 09/08/2026, 17:24:38 UTC
Last enriched: 10/16/2026, 20:55:04 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 27
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