CVE-2026-42987

Windows Deployment Services (WDS) Remote Code Execution

State: Published
Severity: 8.1 High
Published: Jun 9, 2026
Updated: Sep 24, 2026
Reserved: Apr 30, 2026

Description

Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network.

Scores

CVSS	Score	Vector	Source
3.1	8.1 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
Windows Server 2012Microsoft	6.2.9200.0 to before 6.2.9200.26132Affected
Windows Server 2012 (Server Core installation)Microsoft	6.2.9200.0 to before 6.2.9200.26132Affected
Windows Server 2012 R2Microsoft	6.3.9600.0 to before 6.3.9600.23228Affected
Windows Server 2012 R2 (Server Core installation)Microsoft	6.3.9600.0 to before 6.3.9600.23228Affected
Windows Server 2016Microsoft	10.0.14393.0 to before 10.0.14393.9234Affected
Windows Server 2016 (Server Core installation)Microsoft	10.0.14393.0 to before 10.0.14393.9234Affected
Windows Server 2019Microsoft	10.0.17763.0 to before 10.0.17763.8880Affected
Windows Server 2019 (Server Core installation)Microsoft	10.0.17763.0 to before 10.0.17763.8880Affected
Windows Server 2022Microsoft	10.0.20348.0 to before 10.0.20348.5256Affected
Windows Server 2025Microsoft	10.0.26100.0 to before 10.0.26100.32995Affected
Windows Server 2025 (Server Core installation)Microsoft	10.0.26100.0 to before 10.0.26100.32995Affected

References

Windows Deployment Services (WDS) Remote Code Executionvendor-advisorypatch

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