CVE-2026-54983: CWE-121: Stack-based Buffer Overflow in Microsoft Windows 10 Version 1607
A stack-based buffer overflow vulnerability exists in Active Directory Federation Services (AD FS) on Microsoft Windows 10 Version 1607 (build 10.0.14393.0). This vulnerability allows an unauthorized attacker to cause a denial of service over a network. The issue has a high severity rating with a CVSS score of 7.5. An official fix is available from Microsoft.
AI Analysis
Technical Summary
CVE-2026-54983 is a stack-based buffer overflow vulnerability in Active Directory Federation Services (AD FS) on Microsoft Windows 10 Version 1607 (build 10.0.14393.0). This vulnerability can be exploited remotely without privileges or user interaction to cause a denial of service condition. The vulnerability has been assigned a CVSS v3.1 base score of 7.5, reflecting its network attack vector, low attack complexity, no required privileges or user interaction, and impact limited to availability. Microsoft has released an official fix to address this issue.
Potential Impact
An attacker can exploit this vulnerability remotely to cause a denial of service (DoS) on affected systems running Windows 10 Version 1607 with AD FS. The vulnerability does not impact confidentiality or integrity but can disrupt service availability.
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-2026-54983 to remediate this vulnerability.
CVE-2026-54983: CWE-121: Stack-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
A stack-based buffer overflow vulnerability exists in Active Directory Federation Services (AD FS) on Microsoft Windows 10 Version 1607 (build 10.0.14393.0). This vulnerability allows an unauthorized attacker to cause a denial of service over a network. The issue has a high severity rating with a CVSS score of 7.5. An official fix is available from Microsoft.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-54983 is a stack-based buffer overflow vulnerability in Active Directory Federation Services (AD FS) on Microsoft Windows 10 Version 1607 (build 10.0.14393.0). This vulnerability can be exploited remotely without privileges or user interaction to cause a denial of service condition. The vulnerability has been assigned a CVSS v3.1 base score of 7.5, reflecting its network attack vector, low attack complexity, no required privileges or user interaction, and impact limited to availability. Microsoft has released an official fix to address this issue.
Potential Impact
An attacker can exploit this vulnerability remotely to cause a denial of service (DoS) on affected systems running Windows 10 Version 1607 with AD FS. The vulnerability does not impact confidentiality or integrity but can disrupt service availability.
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-2026-54983 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-16T14:10:05.868Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54983","vendor":"Microsoft"}]
Threat ID: 6a566f7d68715ace43e6bb9a
Added to database: 07/14/2026, 17:18:53 UTC
Last enriched: 07/15/2026, 01:02:58 UTC
Last updated: 07/15/2026, 01:02:58 UTC
Views: 2
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