CVE-2026-72978: CWE-770: Allocation of Resources Without Limits or Throttling in Microsoft Windows 10 Version 1607
CVE-2026-72978 is a medium severity vulnerability in Microsoft Windows 10 Version 1607 involving allocation of resources without limits or throttling in Active Directory Federation Services (AD FS). This flaw allows an unauthorized attacker to cause a denial of service over the network by exhausting resources. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-72978) affects Microsoft Windows 10 Version 1607 (build 10.0.14393.0) and is classified under CWE-770: Allocation of Resources Without Limits or Throttling. The issue occurs in Active Directory Federation Services (AD FS), where resource allocation is not properly limited or throttled, enabling an unauthorized attacker to perform a denial of service attack over the network. The CVSS v3.1 base score is 5.9, indicating medium severity, with network attack vector, high attack complexity, no privileges or user interaction required, and impact limited to availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
An attacker can exploit this vulnerability to cause a denial of service condition on the affected system by exhausting resources in AD FS. This results in disruption of service availability but does not impact confidentiality or integrity 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 for Windows 10 Version 1607 (build 10.0.14393.0) as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72978. No additional mitigations are indicated by the vendor advisory.
CVE-2026-72978: CWE-770: Allocation of Resources Without Limits or Throttling in Microsoft Windows 10 Version 1607
Description
CVE-2026-72978 is a medium severity vulnerability in Microsoft Windows 10 Version 1607 involving allocation of resources without limits or throttling in Active Directory Federation Services (AD FS). This flaw allows an unauthorized attacker to cause a denial of service over the network by exhausting resources. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 5.9medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-72978) affects Microsoft Windows 10 Version 1607 (build 10.0.14393.0) and is classified under CWE-770: Allocation of Resources Without Limits or Throttling. The issue occurs in Active Directory Federation Services (AD FS), where resource allocation is not properly limited or throttled, enabling an unauthorized attacker to perform a denial of service attack over the network. The CVSS v3.1 base score is 5.9, indicating medium severity, with network attack vector, high attack complexity, no privileges or user interaction required, and impact limited to availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
An attacker can exploit this vulnerability to cause a denial of service condition on the affected system by exhausting resources in AD FS. This results in disruption of service availability but does not impact confidentiality or integrity 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 for Windows 10 Version 1607 (build 10.0.14393.0) as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72978. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-10T18:38:17.056Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72978","vendor":"Microsoft"}]
Threat ID: 6aa0454bacd9273b49fa9d6f
Added to database: 09/08/2026, 17:26:35 UTC
Last enriched: 09/08/2026, 23:38:02 UTC
Last updated: 09/08/2026, 23:38:02 UTC
Views: 1
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