CVE-2026-43291

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

08/05/2026

Last modified:

14/05/2026

Description

In the Linux kernel, the following vulnerability has been resolved: net: nfc: nci: Fix parameter validation for packet data Since commit 9c328f54741b ("net: nfc: nci: Add parameter validation for packet data") communication with nci nfc chips is not working any more. The mentioned commit tries to fix access of uninitialized data, but failed to understand that in some cases the data packet is of variable length and can therefore not be compared to the maximum packet length given by the sizeof(struct).

Impact

Vector 3.x

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

Base Score: 8.30 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/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): Low
Availability (A): High

Base Score 3.x

8.30

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.15.195 (including)	5.15.202 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.1.156 (including)	6.1.165 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.6.112 (including)	6.6.128 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.12.53 (including)	6.12.75 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.17.3 (including)	6.18 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.18 (including)	6.18.16 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.19 (including)	6.19.6 (excluding)

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

CVE-2026-43291

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools