CVE-2026-31779

Severity CVSS v4.0:

Pending analysis

Type:

CWE-125 Out-of-bounds Read

Publication date:

01/05/2026

Last modified:

11/05/2026

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler() The memcpy function assumes the dynamic array notif->matches is at least as large as the number of bytes to copy. Otherwise, results->matches may contain unwanted data. To guarantee safety, extend the validation in one of the checks to ensure sufficient packet length. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Impact

Vector 3.x

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

Base Score: 8.10 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

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

Base Score 3.x

8.10

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	6.1 (including)	6.1.168 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.134 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.81 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.18.22 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.19 (including)	6.19.12 (excluding)
cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::
cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::
cpe:2.3:o:linux:linux_kernel:7.0:rc3::::::
cpe:2.3:o:linux:linux_kernel:7.0:rc4::::::
cpe:2.3:o:linux:linux_kernel:7.0:rc5::::::
cpe:2.3:o:linux:linux_kernel:7.0:rc6::::::

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

CVE-2026-31779

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools