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CyRC advisory: Vulnerability in Broadcom chipset causes network disruption and client disconnection on wireless routers

ID: 863901db-ce4b-5f50-aa81-ebdde8355d5a

STIX ID: report--863901db-ce4b-5f50-aa81-ebdde8355d5a

Feed Name: Security Boulevard

Threat Score
30/100

Date Published: 2026-01-13

Date Updated: 2026-04-22

Author: Kari Hulkko

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Black Duck/ASUS/Broadcom advisory reports vulnerabilities found in Broadcom-based Wi‑Fi firmware affecting ASUS devices (tested on ASUS RT-BE86U). The issues were discovered by Kari Hulkko using Defensics; Broadcom provided a patched library and ASUS released updated firmware (fixed in firmware 3.0.0.6.102_37841 and newer). The advisory includes discovery credit, remediation instructions to integrate patches, and a timeline from initial disclosure (Dec 23, 2024) through advisory publication (Jan 13, 2026).

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