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CVE-2026-41108 Microsoft CVE debrief

CVE-2026-41108 is a heap-based buffer overflow vulnerability in Microsoft Windows DNS that allows an authorized attacker to elevate privileges locally. The vulnerability has a CVSS score of 7 and a severity of HIGH. It was published on 2026-06-09T17:17:06.920Z and modified on 2026-06-11T17:03:34.950Z.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
HIGH 7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-11
Advisory published
2026-06-09
Advisory updated
2026-06-11

Who should care

Administrators and users of Microsoft Windows DNS are advised to take action to mitigate this vulnerability.

Technical summary

The vulnerability is caused by a heap-based buffer overflow in Microsoft Windows DNS. An authorized attacker can exploit this vulnerability to elevate privileges locally. The vulnerability affects multiple versions of Microsoft Windows, including Windows 10, Windows 11, and Windows Server.

Defensive priority

HIGH

Recommended defensive actions

  • Apply patches or updates provided by Microsoft to vulnerable systems.
  • Refer to [ref-4](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41108) for vendor advisory and mitigation guidance.

Evidence notes

The vulnerability is analyzed and has a CVSS vector of CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. It is classified under CWE-122.

Official resources

CVE-2026-41108 was published on 2026-06-09T17:17:06.920Z and modified on 2026-06-11T17:03:34.950Z.