CVE-2016-8658: Stack-based buffer overflow in the brcmf_cfg80211_start_ap function in drivers/net/wireless/broadcom/brcm80...

Security readout for executives and security teams

This flaw can let a local user crash a Linux system that uses the Broadcom brcmfmac Wi-Fi driver. The public record also says unspecified other impact may be possible, but gives no proven privilege escalation or active exploitation evidence. Exposure is most likely on Linux systems running kernels before 4.7.5 or unpatched vendor backports with Broadcom brcmfmac wireless hardware and AP/hotspot configuration paths available to local users. Treat as a targeted patching item for Linux assets with Broadcom Wi-Fi, not an internet-wide emergency. The main known business risk is local system crash and service disruption. Mitigation focus: Update to a vendor kernel containing the upstream brcmfmac fix.; Review Ubuntu or distribution advisories for patched kernel package versions.; Prioritize multi-user, kiosk, lab, and embedded Linux devices with Broadcom Wi-Fi..

Prepared

Jun 13, 2026, 13:39 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.