SB20261007171 - Out-of-bounds read in Linux kernel microchip wilc1000 driver

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Main Vulnerability Database SB20261007171

SB20261007171 - Out-of-bounds read in Linux kernel microchip wilc1000 driver

Published: October 7, 2026

Security Bulletin ID SB20261007171
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2026-98190)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in the wilc1000 driver's wilc_wfi_p2p_rx() and mgmt_tx() functions when processing public action frames shorter than the 32-byte P2P public action header. A remote attacker can transmit a specially crafted 25- to 31-byte public action frame over the air to cause a denial of service.

Exploitation through the receive path requires the host to be in P2P listen mode. No wireless association is required.


Remediation

Install update from vendor's website.

References