CVE-2026-34348: CWE-693: Protection Mechanism Failure in Microsoft Windows 10 Version 1809
CVE-2026-34348 is a vulnerability in the Windows Event Logging Service of Microsoft Windows 10 Version 1809. It involves a protection mechanism failure that allows an authorized attacker to disclose information over a network. The vulnerability has a CVSS score of 6.5, indicating a medium severity level. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-34348) is classified as CWE-693 (Protection Mechanism Failure) and affects the Windows Event Logging Service in Microsoft Windows 10 Version 1809 (build 10.0.17763.0). It allows an attacker with some level of authorization to disclose sensitive information remotely over a network. The CVSS 3.1 base score is 6.5 with vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N, indicating network attack vector, low attack complexity, requires low privileges, no user interaction, unchanged scope, high confidentiality impact, no integrity or availability impact. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability remotely to disclose sensitive information from the Windows Event Logging Service. The confidentiality impact is high, but integrity and availability are not affected. This could lead to unauthorized disclosure of information that may aid further attacks or compromise privacy.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the provided security update for Windows 10 Version 1809 (build 10.0.17763.0) as soon as possible. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34348 for detailed patching instructions.
CVE-2026-34348: CWE-693: Protection Mechanism Failure in Microsoft Windows 10 Version 1809
Description
CVE-2026-34348 is a vulnerability in the Windows Event Logging Service of Microsoft Windows 10 Version 1809. It involves a protection mechanism failure that allows an authorized attacker to disclose information over a network. The vulnerability has a CVSS score of 6.5, indicating a medium severity level. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-34348) is classified as CWE-693 (Protection Mechanism Failure) and affects the Windows Event Logging Service in Microsoft Windows 10 Version 1809 (build 10.0.17763.0). It allows an attacker with some level of authorization to disclose sensitive information remotely over a network. The CVSS 3.1 base score is 6.5 with vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N, indicating network attack vector, low attack complexity, requires low privileges, no user interaction, unchanged scope, high confidentiality impact, no integrity or availability impact. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability remotely to disclose sensitive information from the Windows Event Logging Service. The confidentiality impact is high, but integrity and availability are not affected. This could lead to unauthorized disclosure of information that may aid further attacks or compromise privacy.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the provided security update for Windows 10 Version 1809 (build 10.0.17763.0) as soon as possible. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34348 for detailed patching instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-26T21:02:16.447Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34348","vendor":"Microsoft"}]
Threat ID: 6a566f6568715ace43e6b29a
Added to database: 07/14/2026, 17:18:29 UTC
Last enriched: 07/15/2026, 02:04:41 UTC
Last updated: 07/15/2026, 02:04:41 UTC
Views: 4
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