CVE-2026-34349: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1809
CVE-2026-34349 is a vulnerability in Windows 10 Version 1809 where sensitive information can be exposed to an unauthorized local attacker via Windows Media. The flaw allows an authorized attacker with local access to disclose sensitive data without user interaction. Microsoft has released an official fix to address this issue.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-34349) involves the exposure of sensitive information (CWE-200) in Windows Media on Microsoft Windows 10 Version 1809 (build 10.0.17763.0). An attacker with local privileges and low complexity can exploit this flaw to disclose sensitive information without requiring user interaction. The CVSS v3.1 base score is 5.5 (medium severity), reflecting the local attack vector, low attack complexity, and high confidentiality impact. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can disclose sensitive information due to this vulnerability. The confidentiality of data is impacted, but integrity and availability are not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1809 to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34349 for the patch and update instructions.
CVE-2026-34349: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1809
Description
CVE-2026-34349 is a vulnerability in Windows 10 Version 1809 where sensitive information can be exposed to an unauthorized local attacker via Windows Media. The flaw allows an authorized attacker with local access to disclose sensitive data without user interaction. Microsoft has released an official fix 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-2026-34349) involves the exposure of sensitive information (CWE-200) in Windows Media on Microsoft Windows 10 Version 1809 (build 10.0.17763.0). An attacker with local privileges and low complexity can exploit this flaw to disclose sensitive information without requiring user interaction. The CVSS v3.1 base score is 5.5 (medium severity), reflecting the local attack vector, low attack complexity, and high confidentiality impact. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can disclose sensitive information due to this vulnerability. The confidentiality of data is impacted, but integrity and availability are not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1809 to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34349 for the patch and update 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-2026-34349","vendor":"Microsoft"}]
Threat ID: 6a566f6768715ace43e6b2f9
Added to database: 07/14/2026, 17:18:31 UTC
Last enriched: 07/15/2026, 02:04:34 UTC
Last updated: 07/15/2026, 02:04:34 UTC
Views: 2
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