CVE-2026-62893: Windows Deployment Services TFTP Server Remote Code Execution Vulnerability
Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network.
Other sources
Windows Deployment Services TFTP Server Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9115Patch KB5120238 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5499Fixed in 10.0.20348.5440Patch KB5120229 - Upgrade
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Fixed in 6.3.9600.23337Patch KB5120386 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.26279Patch KB5120385 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9418Patch KB5120418 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33296Fixed in 10.0.26100.33222Patch KB5120228
Event History
Frequently Asked Questions
What is the severity of CVE-2026-62893?
CVE-2026-62893 has a critical severity rating of 9.8.
How do I fix CVE-2026-62893?
To fix CVE-2026-62893, apply the latest security updates provided by Microsoft.
Who is affected by CVE-2026-62893?
CVE-2026-62893 affects various versions of Microsoft Windows including Windows 10 and multiple Windows Server editions.
What types of attacks are possible with CVE-2026-62893?
CVE-2026-62893 allows an unauthorized attacker to execute remote code over a network.
What is the cause of CVE-2026-62893?
CVE-2026-62893 is caused by a use after free vulnerability in the Windows Deployment Services TFTP Server.