IM
IronMonkey Threat Research

CVE-2026-46122 HIGH

Published: 2026-05-28 | Last Modified: 2026-06-24 | Status: Undergoing Analysis

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: b43: enforce bounds check on firmware key index in b43_rx() The firmware-controlled key index in b43_rx() can exceed the dev->key[] array size (58 entries). The existing B43_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read. Make the B43_WARN_ON check enforcing by dropping the frame when the firmware returns an invalid key index.

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 0x7fd36945f800> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36a000180> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36a003e00> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd2dbe971c0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36945d800> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36945dd80> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36a0033c0> Operating System
linux linux_kernel 7.1 <built-in method update of dict object at 0x7fd36ae49200> Operating System
linux linux_kernel 7.1 <built-in method update of dict object at 0x7fd36a0001c0> 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