cve 2026 56168

CVE 2026 56168 is a Windows SMB Server denial-of-service vulnerability addressed by Microsoft in the July 14, 2026 security updates. The tagged coverage explains that an authenticated attacker could exploit the flaw over the network to crash or disrupt a vulnerable SMB service. It is caused by a null pointer dereference and affects relevant Windows Server and client systems before the fix. Microsoft rates the issue Important, with a CVSS 3.1 base score of 6.5. This tag page focuses on the vulnerability’s network-accessible attack conditions, required privileges, lack of user interaction, and the need for administrators to deploy the applicable July updates.