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MEDIUM · 6.7

CVE-2026-62769

Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.

Vulnerability Description

Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.

CVSS Score

6.7

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
MicrosoftWindows 10 1607< 10.0.14393.9418
MicrosoftWindows 10 1809< 10.0.17763.9121
MicrosoftWindows 10 21H2< 10.0.19044.7663
MicrosoftWindows 10 22H2< 10.0.19045.7663
MicrosoftWindows 11 23H2< 10.0.22631.7517
MicrosoftWindows 11 24H2< 10.0.26100.9106
MicrosoftWindows 11 25H2< 10.0.26200.9106
MicrosoftWindows 11 26H1< 10.0.28000.2704
MicrosoftWindows Server 2012-
MicrosoftWindows Server 2016< 10.0.14393.9418
MicrosoftWindows Server 2019< 10.0.17763.9121
MicrosoftWindows Server 2022< 10.0.20348.5440
MicrosoftWindows Server 2025< 10.0.26100.33222

Related Weaknesses (CWE)

CWE-197CWE-122

References

FAQ

What is CVE-2026-62769?

CVE-2026-62769 is a vulnerability with a CVSS score of 6.7 (MEDIUM). Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.

How severe is CVE-2026-62769?

CVE-2026-62769 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-62769?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21H2, Microsoft Windows 10 22H2, Microsoft Windows 11 23H2.