CVE-2026-98830

high

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: wfx: validate MIB read length before copying to caller wfx_hif_read_mib() copies reply->length bytes from the firmware response into the caller-provided buffer without checking that reply->length does not exceed val_len. A firmware response with a length field larger than expected overruns the caller buffer and reads past the end of the reply allocation. Replace the dead -ENOMEM check with an active validation that reply->length fits within val_len before the memcpy.

References

https://git.kernel.org/stable/c/ce67ebe9d8629776ce38e6995ae72fb903c828db

https://git.kernel.org/stable/c/b8310b55e53622a393d14af4939f620c1828778b

https://git.kernel.org/stable/c/819d4c1323e2a9b7329021d5367aa01add22b5dc

https://git.kernel.org/stable/c/7acb36fd60a3e7b858f12e69a919c3609b281408

https://git.kernel.org/stable/c/71d140099165de03128c00dd129f1eab21c6a3c4

https://git.kernel.org/stable/c/02886c18a340da59df57365f29009e1258bfe333

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103770

Details

Source: Mitre, NVD

Published: 2026-10-18

Updated: 2026-10-30

Risk Information

CVSS v2

Base Score: 6

Vector: CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7

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

Severity: High

EPSS

EPSS: 0.00205