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HIGH

CVE-2019-9500

CVSS v3

8.3

HIGH

EPSS Score

3.9 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2019-9500 Red Hat Product Security538 products fixed · 12 known affected

    kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results

    kernel-rt as a component of Red Hat Enterprise MRG 2 · kernel-rt-debug as a component of Red Hat Enterprise MRG 2 · kernel-rt-debug-devel as a component of Red Hat Enterprise MRG 2

  • RHSA-2019:4168 Red Hat Product Security117 products fixed

    Red Hat Security Advisory: kernel security and bug fix update

  • RHSA-2019:4171 Red Hat Product Security25 products fixed

    Red Hat Security Advisory: kpatch-patch security update

  • RHSA-2019:3217 Red Hat Product Security25 products fixed

    Red Hat Security Advisory: kernel-alt security and bug fix update

  • RHSA-2019:2945 Red Hat Product Security5 products fixed

    Red Hat Security Advisory: kpatch-patch security update

  • RHSA-2019:2741 Red Hat Product Security34 products fixed

    Red Hat Security Advisory: kernel-rt security and bug fix update

3 more advisories

Full record on NVD

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.

Technical details

Published
2020-01-16

Frequently asked questions

What is CVE-2019-9500?

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.

Is CVE-2019-9500 actively exploited?

Active exploitation of CVE-2019-9500 has not been confirmed. Its EPSS score was 3.9% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-9500?

CVE-2019-9500 has a CVSS v3 base score of 8.3 (HIGH severity).

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