CVE-2026-49799: CWE-400: Uncontrolled Resource Consumption in Microsoft Windows 10 Version 1607
CVE-2026-49799 is a vulnerability in Microsoft Windows 10 Version 1607 where uncontrolled resource consumption in the Local Security Authority Subsystem Service (LSASS) can be triggered by an authorized attacker to cause a denial of service over a network. This issue has a medium severity rating and a CVSS score of 6.5. An official fix is available from Microsoft to address this vulnerability.
AI Analysis
Technical Summary
This vulnerability involves uncontrolled resource consumption in the LSASS component of Windows 10 Version 1607 (build 10.0.14393.0). An authorized attacker can exploit this flaw remotely to cause a denial of service condition, impacting system availability. The vulnerability is tracked as CWE-400 (Uncontrolled Resource Consumption). Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation results in denial of service (DoS) by exhausting system resources in LSASS, causing system instability or crash. There is no impact on confidentiality or integrity according to the CVSS vector. The attack requires low complexity and privileges but no user interaction.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49799 to remediate this vulnerability.
CVE-2026-49799: CWE-400: Uncontrolled Resource Consumption in Microsoft Windows 10 Version 1607
Description
CVE-2026-49799 is a vulnerability in Microsoft Windows 10 Version 1607 where uncontrolled resource consumption in the Local Security Authority Subsystem Service (LSASS) can be triggered by an authorized attacker to cause a denial of service over a network. This issue has a medium severity rating and a CVSS score of 6.5. An official fix is available from Microsoft to address this vulnerability.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves uncontrolled resource consumption in the LSASS component of Windows 10 Version 1607 (build 10.0.14393.0). An authorized attacker can exploit this flaw remotely to cause a denial of service condition, impacting system availability. The vulnerability is tracked as CWE-400 (Uncontrolled Resource Consumption). Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation results in denial of service (DoS) by exhausting system resources in LSASS, causing system instability or crash. There is no impact on confidentiality or integrity according to the CVSS vector. The attack requires low complexity and privileges but no user interaction.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49799 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-01T17:02:37.208Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49799","vendor":"Microsoft"}]
Threat ID: 6a566f6f68715ace43e6b594
Added to database: 07/14/2026, 17:18:39 UTC
Last enriched: 07/15/2026, 01:34:29 UTC
Last updated: 07/15/2026, 03:35:44 UTC
Views: 4
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