CVE-2019-9502: Broadcom BCM4339 Firmware
High severity, CVSS 8.8. EPSS: 2.6% chance of exploitation in the next 30 days.
The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow. If the vendor information element data length is larger than 164 bytes, a heap buffer overflow is triggered in wlc_wpa_plumb_gtk. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions.
Affected products
Published 2020-02-03. Last modified 2026-06-17.