CVE-2019-9500

7.9 HIGH 4% exploit odds Fix listed

What it is

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.

At a glance

Exploitability: Can be exploited from the same network segment without logging in, but needs a user to act. High risk of data exposure, data tampering, service disruption.
Exploit odds: 3.9% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2020-01-16 21:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:43 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.9% in the next 30 days (EPSS).
Severity: 7.9 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2020-01-16 21:15 UTC
Last modified: 2026-06-17 02:43 UTC
Exploit probability: 3.9% · EPSS, next 30 days
Weakness: CWE-122
Record status: Modified

Affected

Broadcom Brcmfmac Driver
Linux Kernel < 4.9.181
Linux Kernel < 4.14.123
Linux Kernel < 4.19.47
Linux Kernel < 5.0.20

Attack profile CVSS 3.1 · 7.9

Attack vector: Adjacent network
Complexity: High
Privileges needed: None
User interaction: Required
Scope: Changed
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2019-9500.md and follow it. Check whether this project is affected by CVE-2019-9500. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record