CVE-2026-96325: Windows SMB Server Denial of Service Vulnerability
Missing reference to active allocated resource in Windows SMB Server allows an unauthorized attacker to deny service over a network.
Other sources
Windows SMB Server Denial of Service Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
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Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
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Fixed in 10.0.17763.9376Patch KB5126651 - Upgrade
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Fixed in 10.0.14393.9612Patch KB5126868 - Upgrade
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Fixed in 6.2.9200.26434Patch KB5126835 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.23470Patch KB5126836 - Upgrade
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Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
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Fixed in 10.0.20348.5761Patch KB5126655 - Upgrade
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Fixed in 10.0.19044.7807Patch KB5126657
Event History
Frequently Asked Questions
Which systems are in scope for this issue?
The affected software list includes Microsoft Windows 10, Windows 11, and Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025.
Does exploitation require credentials or user interaction?
No. The supplied vector indicates network reachability, low attack complexity, no privileges required, and no user interaction.
What is the expected security impact?
The reported impact is denial of service against Windows SMB Server. The supplied metrics indicate no confidentiality or integrity impact, with high availability impact.