CVE-2026-96325

7.5High

Published 13 Oct 2026 · NVD status: Analyzed · AI triage by gemini-3.8-flash

7.5High

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Impact: High impact on availability
Weakness: CWE-771

Impact

Unauthenticated network attackers can crash the Windows SMB Server to cause a denial of service. They only need network connectivity to the SMB port.

Root cause

The SMB server fails to maintain a reference to an active allocated resource, leading to a resource management failure.

Affected systems

Versions not listed — check the vendor advisory.

CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fix & remediation

Apply the vendor security update from Microsoft. If patching must wait, block inbound TCP port 445 at the perimeter or host firewall to untrusted networks.

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

Ad · In-content banner

NVD description

Missing reference to active allocated resource in Windows SMB Server allows an unauthorized attacker to deny service over a network.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96325PatchVendor Advisory

Source: nvd.nist.gov/vuln/detail/CVE-2026-96325