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HIGH · 7.5

CVE-2026-0386

Improper access control in Windows Deployment Services allows an unauthorized attacker to execute code over an adjacent network.

Vulnerability Description

Improper access control in Windows Deployment Services allows an unauthorized attacker to execute code over an adjacent network.

CVSS Score

7.5

HIGH

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

Affected Products

VendorProductVersions
MicrosoftWindows Server 2008-
MicrosoftWindows Server 2012-
MicrosoftWindows Server 2016< 10.0.14393.8783
MicrosoftWindows Server 2019< 10.0.17763.8276
MicrosoftWindows Server 2022< 10.0.20348.4648
MicrosoftWindows Server 2022 23H2< 10.0.25398.2092
MicrosoftWindows Server 2025< 10.0.26100.32230

Related Weaknesses (CWE)

CWE-284

References

FAQ

What is CVE-2026-0386?

CVE-2026-0386 is a vulnerability with a CVSS score of 7.5 (HIGH). Improper access control in Windows Deployment Services allows an unauthorized attacker to execute code over an adjacent network.

How severe is CVE-2026-0386?

CVE-2026-0386 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-0386?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022.