CVE-2026-33834: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1607
Improper access control in Windows Event Logging Service allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
CVE-2026-33834 is an improper access control vulnerability (CWE-284) in the Windows Event Logging Service of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). It enables a local attacker with some level of authorization to elevate their privileges on the affected system. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high severity, with impacts to confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability, as detailed in their security update guide.
Potential Impact
An authorized local attacker can exploit this vulnerability to gain elevated privileges, potentially allowing them to execute actions with higher rights than intended. This can lead to full system compromise affecting confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the security update provided by Microsoft as soon as possible to remediate the issue. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33834 for the official patch and update instructions.
CVE-2026-33834: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1607
Description
Improper access control in Windows Event Logging Service allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-33834 is an improper access control vulnerability (CWE-284) in the Windows Event Logging Service of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). It enables a local attacker with some level of authorization to elevate their privileges on the affected system. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high severity, with impacts to confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability, as detailed in their security update guide.
Potential Impact
An authorized local attacker can exploit this vulnerability to gain elevated privileges, potentially allowing them to execute actions with higher rights than intended. This can lead to full system compromise affecting confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the security update provided by Microsoft as soon as possible to remediate the issue. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33834 for the official patch and update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-24T00:52:01.353Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33834","vendor":"Microsoft"}]
Threat ID: 6a036539cbff5d861008c334
Added to database: 05/12/2026, 17:36:57 UTC
Last enriched: 06/19/2026, 17:30:59 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 45
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