Buffer Over-read Vulnerability in DNS Server by Microsoft
CVE-2026-97828

6.5MEDIUM

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1607
Windows 10 Version 1809
Windows 10 Version 21h2
Windows 10 Version 22h2
Vendor
CVE Published:
13 October 2026

What is CVE-2026-97828?

A buffer over-read vulnerability in Microsoft's DNS Server exposes the service to unauthorized information disclosure over the network. Attackers with valid credentials can exploit this flaw to leak sensitive information, compromising the confidentiality of the system. This vulnerability highlights the importance of timely updates and rigorous network security measures to protect against potential exploitation.

Affected Version(s)

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.9612

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.9376

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.7807

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.