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CVE-2026-0386 is a critical improper access control vulnerability in Windows Deployment Services (WDS), specifically in the Hands-Free Deployment functionality used for automated operating system deployment. The issue arises because the Unattend.xml answer file can be transmitted over an unauthenticated RPC channel and exposed through native WDS deployment workflows, allowing an attacker on an adjacent network to intercept deployment configuration data. Because the answer file may contain sensitive deployment parameters and credentials, an attacker can use the exposed information to compromise the deployment process and inject malicious code that executes during operating system installation. Microsoft indicated the issue affects Windows Server versions from Server 2008 through Server 2025, including Server 2016, 2019, 2022, and version 23H2.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
21 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability affecting Windows Deployment Services (WDS) that is mitigated in KB5082063 by disabling the Hands-Free Deployment feature by default.
A specific vulnerability referenced in Microsoft hardening guidance for Windows Deployment Services (WDS) Hands-Free Deployment and related Kerberos/KDC encryption behavior changes.
A vulnerability related to Windows Deployment Services Hands-Free Deployment, addressed by disabling the feature by default and no longer supporting it.
A critical remote code execution vulnerability in Windows Deployment Services (WDS) caused by improper access control exposing Unattend.xml over an unauthenticated RPC channel during hands-free deployments.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.