Numeric Truncation Error in Windows DNS by Microsoft
CVE-2026-65798

6.7MEDIUM

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1607
Windows 10 Version 1809
Windows 10 Version 21h2
Windows 10 Version 22h2
Vendor
CVE Published:
11 August 2026

What is CVE-2026-65798?

A vulnerability exists in Windows DNS resulting from a numeric truncation error, which may allow an authorized attacker to elevate privileges on the local system. By exploiting this flaw, attackers could gain enhanced access rights, potentially compromising the integrity and security of affected systems. It is crucial for users to apply the necessary patches and updates to mitigate this risk.

Affected Version(s)

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.9418

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.9115

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.7663

References

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

CVSS V3.1

Score:
6.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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