CVE-2026-42987
Windows Deployment Services (WDS) Remote Code Execution
CVE-2026-42987 is fixed in 12 products on 1 platform, first by KB5094122, released June 9, 2026. It is not reported as exploited. Patch Radar priority: Urgent.
Urgent
CVSS
8.1
Critical
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0059
48th percentile
<p>Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows Server 2012 | KB5094042 | Jun 9, 2026 | |
| Windows Server 2012 (Server Core installation) | KB5094042 | Jun 9, 2026 | |
| Windows Server 2012 R2 | KB5094041 | Jun 9, 2026 | |
| Windows Server 2012 R2 (Server Core installation) | KB5094041 | Jun 9, 2026 | |
| Windows Server 2016 | 14393.9234 | KB5094122 | Jun 9, 2026 |
| Windows Server 2016 (Server Core installation) | 14393.9234 | KB5094122 | Jun 9, 2026 |
| Windows Server 2019 | 17763.8880 | KB5094123 | Jun 9, 2026 |
| Windows Server 2019 (Server Core installation) | 17763.8880 | KB5094123 | Jun 9, 2026 |
| Windows Server 2022 | 20348.5256 | KB5094128 | Jun 9, 2026 |
| Windows Server 2022 (Server Core installation) | 20348.5256 | KB5094128 | Jun 9, 2026 |
| Windows Server 2025 | 26100.32995 | KB5094125 | Jun 9, 2026 |
| Windows Server 2025 (Server Core installation) | 26100.32995 | KB5094125 | Jun 9, 2026 |
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