CVE-2026-78446

Published: Sep 8, 2026Modified: Sep 8, 2026

5.3

Vector

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

Exploitability: 1.6 / Impact: 3.6

Source: secure@microsoft.com (Secondary)

Description

Use after free in Windows Distributed File System (DFS) allows an authorized attacker to deny service over a network.

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78446

Source: secure@microsoft.com

Timeline

No history available yet.