CVE-2026-57976: CWE-476: NULL Pointer Dereference in Microsoft Windows 10 Version 1607
Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-57976) is a null pointer dereference issue in Active Directory Domain Services on Microsoft Windows 10 Version 1607 (build 10.0.14393.0). It can be exploited by an authorized attacker to cause a denial of service condition over the network. The CVSS v3.1 base score is 6.5, reflecting medium severity with network attack vector, low attack complexity, and no user interaction required. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this null pointer dereference vulnerability to cause a denial of service on affected Windows 10 Version 1607 systems, potentially disrupting Active Directory Domain Services availability over the network. There is no impact on confidentiality or integrity.
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-2026-57976 to remediate this vulnerability.
CVE-2026-57976: CWE-476: NULL Pointer Dereference in Microsoft Windows 10 Version 1607
Description
Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a network.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-57976) is a null pointer dereference issue in Active Directory Domain Services on Microsoft Windows 10 Version 1607 (build 10.0.14393.0). It can be exploited by an authorized attacker to cause a denial of service condition over the network. The CVSS v3.1 base score is 6.5, reflecting medium severity with network attack vector, low attack complexity, and no user interaction required. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this null pointer dereference vulnerability to cause a denial of service on affected Windows 10 Version 1607 systems, potentially disrupting Active Directory Domain Services availability over the network. There is no impact on confidentiality or integrity.
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-2026-57976 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-26T17:45:44.853Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57976","vendor":"Microsoft"}]
Threat ID: 6a566f8368715ace43e6c028
Added to database: 07/14/2026, 17:18:59 UTC
Last enriched: 08/13/2026, 15:57:17 UTC
Last updated: 08/25/2026, 22:52:12 UTC
Views: 65
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