CVE-2025-21844

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

12/03/2025

Last modified:

03/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: Add check for next_buffer in receive_encrypted_standard() Add check for the return value of cifs_buf_get() and cifs_small_buf_get() in receive_encrypted_standard() to prevent null pointer dereference.

Impact

Vector 3.x

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

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	6.1.69 (including)	6.1.130 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.6.8 (including)	6.6.80 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.17 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.13.5 (excluding)
cpe:2.3:o:linux:linux_kernel:5.10.211:::::::*
cpe:2.3:o:linux:linux_kernel:5.15.150:::::::*
cpe:2.3:o:linux:linux_kernel:6.14:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.14:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.14:rc3::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2025-21844

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools