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9.8
CVE-2026-62893: Windows Deployment Services TFTP Server Code Execution Risk
CVE-2026-62893
CVE-2026-62893
Summary
An attacker can execute malicious code on a Windows Deployment Services server, potentially taking control of the server. This could allow the attacker to access sensitive information or disrupt services. To protect your network, ensure Windows Deployment Services is not exposed to the internet and apply any available security updates.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| microsoft | windows 10 version 1607 | < 10.0.14393.9418 |
| microsoft | windows 10 version 1809 | < 10.0.17763.9115 |
| microsoft | windows server 2012 | < 6.2.9200.26279 |
| microsoft | windows server 2012 (server core installation) | < 6.2.9200.26279 |
| microsoft | windows server 2012 r2 | < 6.3.9600.23337 |
| microsoft | windows server 2012 r2 (server core installation) | < 6.3.9600.23337 |
| microsoft | windows server 2016 | < 10.0.14393.9418 |
| microsoft | windows server 2016 (server core installation) | < 10.0.14393.9418 |
| microsoft | windows server 2019 | < 10.0.17763.9115 |
| microsoft | windows server 2019 (server core installation) | < 10.0.17763.9115 |
| microsoft | windows server 2022 | < 10.0.20348.5499 |
| microsoft | windows server 2025 | < 10.0.26100.33296 |
| microsoft | windows server 2025 (server core installation) | < 10.0.26100.33296 |
Original title
Windows Deployment Services TFTP Server Remote Code Execution Vulnerability
Original description
Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network.
mitre CVSS3.1
9.8
Vulnerability type
CWE-416
Use After Free
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62893 vendor-advisory patch
Published: 11 Aug 2026 · Updated: 11 Aug 2026 · First seen: 11 Aug 2026