VULNERABILITY INTELLIGENCE

CVE-2025-22037

CVSS score5.5 MEDIUM
EPSS probability68.76%
CISA KEVNot currently listed
Published2025-04-16
Last modified2026-10-30
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in alloc_preauth_hash() The Client send malformed smb2 negotiate request. ksmbd return error response. Subsequently, the client can send smb2 session setup even thought conn->preauth_info is not allocated. This patch add KSMBD_SESS_NEED_SETUP status of connection to ignore session setup request if smb2 negotiate phase is not complete.

Weakness classification

  • CWE-476: NULL Pointer Dereference

Primary references