CVE-2026-72939: CWE-476: NULL Pointer Dereference in Microsoft Windows 10 Version 1607
CVE-2026-72939 is a null pointer dereference vulnerability in the Windows Routing and Remote Access Service (RRAS) on Windows 10 Version 1607. This flaw allows an authorized attacker to cause a denial of service over the network by triggering the null pointer dereference. The vulnerability has a medium severity rating with a CVSS score of 6.5. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability involves a null pointer dereference in the Windows Routing and Remote Access Service (RRAS) component of Windows 10 Version 1607 (build 10.0.14393.0). An attacker with authorized access can exploit this flaw to cause a denial of service condition, disrupting network services. The vulnerability does not impact confidentiality or integrity but affects availability. Microsoft has published an official fix for this issue.
Potential Impact
An authorized attacker can cause a denial of service over the network by exploiting this null pointer dereference vulnerability in RRAS. There is no impact on confidentiality or integrity. The disruption affects system availability, potentially causing service outages.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the provided security update as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72939 to remediate this vulnerability.
CVE-2026-72939: CWE-476: NULL Pointer Dereference in Microsoft Windows 10 Version 1607
Description
CVE-2026-72939 is a null pointer dereference vulnerability in the Windows Routing and Remote Access Service (RRAS) on Windows 10 Version 1607. This flaw allows an authorized attacker to cause a denial of service over the network by triggering the null pointer dereference. The vulnerability has a medium severity rating with a CVSS score of 6.5. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a null pointer dereference in the Windows Routing and Remote Access Service (RRAS) component of Windows 10 Version 1607 (build 10.0.14393.0). An attacker with authorized access can exploit this flaw to cause a denial of service condition, disrupting network services. The vulnerability does not impact confidentiality or integrity but affects availability. Microsoft has published an official fix for this issue.
Potential Impact
An authorized attacker can cause a denial of service over the network by exploiting this null pointer dereference vulnerability in RRAS. There is no impact on confidentiality or integrity. The disruption affects system availability, potentially causing service outages.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the provided security update as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72939 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-10T18:14:23.516Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72939","vendor":"Microsoft"}]
Threat ID: 6aa04544acd9273b49fa9cb0
Added to database: 09/08/2026, 17:26:28 UTC
Last enriched: 09/08/2026, 23:53:16 UTC
Last updated: 09/08/2026, 23:53:16 UTC
Views: 3
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