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.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

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Fixes

Solution

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Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/02886c18a340da59df57365f29009e1258bfe333 cve-icon cve-icon
https://git.kernel.org/stable/c/71d140099165de03128c00dd129f1eab21c6a3c4 cve-icon cve-icon
https://git.kernel.org/stable/c/7acb36fd60a3e7b858f12e69a919c3609b281408 cve-icon cve-icon
https://git.kernel.org/stable/c/ce67ebe9d8629776ce38e6995ae72fb903c828db cve-icon cve-icon
History

Sun, 18 Oct 2026 20:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
CWE-787

Sun, 18 Oct 2026 16:00:00 +0000

Type Values Removed Values Added
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.
Title wifi: wfx: validate MIB read length before copying to caller
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-10-18T15:49:31.843Z

Reserved: 2026-09-25T10:25:14.372Z

Link: CVE-2026-98830

cve-icon Vulnrichment

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cve-icon NVD

Status : Received

Published: 2026-10-18T16:17:37.250

Modified: 2026-10-18T16:17:37.250

Link: CVE-2026-98830

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-18T20:30:17Z

Weaknesses