Critical (9.8). EPSS 9.1% chance of exploitation in the next 30 days.
On Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips, an attacker can craft a malformed RRM neighbor report frame to trigger an internal buffer overflow in the Wi-Fi firmware, aka B-V2017061204.
Severity
CVSS 3.0
9.8 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
9.1% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-31)