CVE-2026-33826NVD

Vulnerability Summary

Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network.

Severity Level

HIGH(8.0)

Published Date

Apr 14, 2026

Last Modified

Jul 24, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.54%Probability

Root Weakness (CWE)

CWE-20: Improper Input Validation ↗

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required.

CVSS v3.1 Base Metrics — Score 8.0 (HIGH)

Attack VectorAdjacent

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Microsoft Windows Server 2012
Microsoft Windows Server 2016 < 10.0.14393.9060
Microsoft Windows Server 2019 < 10.0.17763.8644
Microsoft Windows Server 2022 < 10.0.20348.5020
Microsoft Windows Server 2022 23h2 < 10.0.25398.2274
Microsoft Windows Server 2025 < 10.0.26100.32690

Patched Versions

Microsoft Windows Server 2016 10.0.14393.9060
Microsoft Windows Server 2019 10.0.17763.8644
Microsoft Windows Server 2022 10.0.20348.5020
Microsoft Windows Server 2022 23h2 10.0.25398.2274
Microsoft Windows Server 2025 10.0.26100.32690

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