cve 2026 58531

The cve 2026 58531 tag covers Microsoft’s July 14, 2026 security updates for a Windows SMB elevation-of-privilege vulnerability. The flaw is rated Important and has a CVSS 3.1 score of 7.5. Microsoft describes it as a race condition in the Windows SMB file-sharing stack, where concurrent activity involving a shared resource may be handled unsafely. A suitably positioned, authenticated attacker could potentially use the issue to gain higher permissions through the network. Tagged coverage emphasizes applying the July cumulative updates as the primary remediation, rather than relying solely on SMB configuration changes.