CVE-2019-9500
The Broadcom brcmfmac WiFi driver prior to commit 1b5e2423164b3670e8bc9174e4762d297990deff is vulnerable to a heap buffer overflow.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.85%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Broadcom brcmfmac WiFi driver prior to commit 1b5e2423164b3670e8bc9174e4762d297990deff is vulnerable to a heap buffer overflow. If the Wake-up on Wireless LAN functionality is configured, a malicious event frame can be constructed to trigger an heap buffer overflow in the brcmf_wowl_nd_results function. This vulnerability can be exploited with compromised chipsets to compromise the host, or when used in combination with CVE-2019-9503, can be used remotely. 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.
- CVSS 3.1
- 8.3 HIGHCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 3.85% probability · 90th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-122, CWE-787
- Affected
- broadcom/brcmfmac driver · linux/linux kernel
- Source
- cret@cert.org
EPSS 3.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.htmlExploit, Third Party Advisory
- https://git.kernel.org/linus/1b5e2423164b3670e8bc9174e4762d297990deffPatch, Third Party Advisory
- https://kb.cert.org/vuls/id/166939/Third Party Advisory, US Government Resource
- https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.htmlExploit, Third Party Advisory
- https://git.kernel.org/linus/1b5e2423164b3670e8bc9174e4762d297990deffPatch, Third Party Advisory
- https://kb.cert.org/vuls/id/166939/Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.