CVE-2026-98350
Received
Received - Intake
Wi-Fi PMKID Leak in Linux Kernel brcmfmac Driver
Vulnerability report for CVE-2026-98350, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-06
Last updated on: 2026-10-06
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: brcmfmac: cyw: pass PMKID to firmware if present
Zero out auth_status on initialization. Otherwise, garbage will
leak from the stack to the firmware (when ssid is less than 32 bytes
and/or when params->pmkid is set). Then, pass the params->pmkid to the
firmware (without it, the firmware caches a garbage PMKID on successful
authentication and denies a subsequent association request that includes
the PMKID).
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | 66f909308a7c05082919ff214a0bbe2a76aa0283 |
| Linux | Linux | 66f909308a7c05082919ff214a0bbe2a76aa0283 |
| Linux | Linux | 66f909308a7c05082919ff214a0bbe2a76aa0283 |
| Linux | Linux | 6.16 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
