The vulnerability of the `brcmfmac/cfg80211.c` file within the `drivers/net/wireless/broadcom/brcm80211/brcmfmac` module of the Broadcom wireless driver for the Linux operating system allows a hacker to gain access to protected information or cause a service failure.

🗓️ 26 Feb 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType

bdu_fstec🔗 bdu.fstec.ru👁 17 Views

A buffer overflow in Broadcom wireless driver brcmfmac cfg80211.c can expose protected information or crash services.

Reporter	Title	Published	Views	Family All 100
AstraLinux	Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15	5 Oct 202611:39	–	astralinux
Tenable Nessus	Rocky Linux 8.6 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (ciqsa-2026_0010)	1 Oct 202600:00	–	nessus
Tenable Nessus	Rocky Linux 8 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (ciqsa-2026_0635)	1 Oct 202600:00	–	nessus
Tenable Nessus	Rocky Linux 9.2 [CIQ] Security Update: bpftool / kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / etc Multiple Vulnerabilities (ciqsa-2026_0392)	1 Oct 202600:00	–	nessus
Tenable Nessus	Rocky Linux 9.2 [CIQ] Security Update: bpftool / kernel / kernel-abi-stablelists / kernel-core / etc Multiple Vulnerabilities (ciqsa-2026_0619)	1 Oct 202600:00	–	nessus
Tenable Nessus	Rocky Linux 9.2 [CIQ] Security Update: bpftool-debuginfo Multiple Vulnerabilities (ciqsa-2026_1248)	1 Oct 202600:00	–	nessus
Tenable Nessus	Rocky Linux 9.2 [CIQ] Security Update: bpftool-debuginfo Multiple Vulnerabilities (ciqsa-2026_1249)	1 Oct 202600:00	–	nessus
Tenable Nessus	Photon OS 4.0: Linux PHSA-2021-4.0-0065	22 Jul 202100:00	–	nessus
Tenable Nessus	RHEL 9 : kernel (RHSA-2025:21051)	12 Nov 202500:00	–	nessus
Tenable Nessus	RHEL 8 : kernel (RHSA-2025:21083)	12 Nov 202500:00	–	nessus

Vulners

Node

OR

red_hat,red_hat_enterprise_linuxMatch7

red_hat,red_hat_enterprise_linuxMatch8

red_hat,red_hat_enterprise_linuxMatch9

Source	Link
git	www.git.kernel.org/stable/c/39f9bd880abac6068bedb24a4e16e7bd26bf92da
git	www.git.kernel.org/stable/c/936a23293bbb3332bdf4cdb9c1496e80cb0bc2c8
git	www.git.kernel.org/stable/c/549825602e3e6449927ca1ea1a08fd89868439df
git	www.git.kernel.org/stable/c/425eea395f1f5ae349fb55f7fe51d833a5324bfe
git	www.git.kernel.org/stable/c/e29661611e6e71027159a3140e818ef3b99f32dd
git	www.git.kernel.org/stable/c/21bee3e649d87f78fe8aef6ae02edd3d6f310fd0
git	www.git.kernel.org/stable/c/ac5305e5d227b9af3aae25fa83380d3ff0225b73
git	www.git.kernel.org/stable/c/228186629ea970cc78b7d7d5f593f2d32fddf9f6
cve	www.cve.org/CVERecord
git	www.git.kernel.org/linus/0da40e018fd034d87c9460123fa7f897b69fdee7

26 Feb 2026 00:00Current

7.1High risk

Vulners AI Score7.1

CVSS 26.2

CVSS 37.1

EPSS0.00244

broadcom wireless driver buffer overflow data exposure service crash configuration file