CVE-2026-33826
Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network.
Published Apr 14, 2026 · updated Jul 24, 2026 · microsoft windows server 2012
Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network.
Code
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No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Apr 14, 2026 · NIST NVD
Detected
Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network.
Jul 24, 2026 · NIST NVD
Updated
Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network.
Affected
- cpe microsoft/windows server 2012r2
- cpe microsoft/windows server 2016version unspecified
- cpe microsoft/windows server 2019version unspecified
- cpe microsoft/windows server 2022version unspecified
- cpe microsoft/windows server 2022 23h2version unspecified
- cpe microsoft/windows server 2025version unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-33826
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-33826
Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network.
nvd.nist.gov