IM
IronMonkey Threat Research

CVE-2026-46163 HIGH

Published: 2026-05-28 | Last Modified: 2026-06-10 | Status: Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: b43legacy: enforce bounds check on firmware key index in RX path Same fix as b43: the firmware-controlled key index in b43legacy_rx() can exceed dev->max_nr_keys. The existing B43legacy_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read of dev->key[]. Make the check enforcing by dropping the frame for invalid indices.

CVSS Metrics

Base Score: 7.8 (HIGH)

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

Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactHIGH
Integrity ImpactHIGH
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 1.8

Impact Score: 5.9

Weaknesses

Source Type Description
[email protected] Primary
en CWE-129

Affected Products

Vendor Product Version Update Type
linux linux_kernel * <built-in method update of dict object at 0x7fd3602826c0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd34170fb80> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd34170f500> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd34170e2c0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd3602823c0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd360282540> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd369406500> Operating System
linux linux_kernel 7.1 <built-in method update of dict object at 0x7fd340be6a00> Operating System
linux linux_kernel 7.1 <built-in method update of dict object at 0x7fd369e201c0> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*

References