The vulnerability of the lapbeth_get_x25_dev() function in the drivers/net/wan/lapbether.c module of the Linux kernel network device driver allows a hacker to cause a service failure.

🗓️ 02 Jul 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType

bdu_fstec

bdu_fstec🔗 bdu.fstec.ru👁 2 Views

The lapbeth_get_x25_dev() vulnerability in the Linux kernel network driver causes service failure due to synchronization errors with shared resources.

Reporter	Title	Published	Views	Family All 17
AstraLinux	Astra Linux – Vulnerability in Linux 5.10	19 Jun 202611:10	–	astralinux
Circl	CVE-2025-39796	12 Sep 202519:19	–	circl
CNNVD	Linux kernel 安全漏洞	12 Sep 202500:00	–	cnnvd
CVE	CVE-2025-39796	12 Sep 202515:59	–	cve
Cvelist	CVE-2025-39796 net: lapbether: ignore ops-locked netdevs	12 Sep 202515:59	–	cvelist
Debian CVE	CVE-2025-39796	12 Sep 202515:59	–	debiancve
EUVD	EUVD-2025-29058	3 Oct 202520:07	–	euvd
NVD	CVE-2025-39796	12 Sep 202516:15	–	nvd
OSV	BELL-CVE-2025-39796	17 Sep 202506:05	–	osv
OSV	CVE-2025-39796 net: lapbether: ignore ops-locked netdevs	12 Sep 202515:59	–	osv

Source	Link
cve	www.cve.org/CVERecord
git	www.git.kernel.org/stable/c/57a7ef338a2cd62a22a15a199ab9afd3d953df55
git	www.git.kernel.org/stable/c/628e233c1fefcc227fae9bdcff6be8ac92e1b4d2
git	www.git.kernel.org/linus/53898ebabe843bfa7baea9dae152797d5d0563c9
kernel	www.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.15.11
kernel	www.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.16.2
lore	www.lore.kernel.org/linux-cve-announce/2025091224-CVE-2025-39796-290b@gregkh/
web	www.web.nvd.nist.gov/view/vuln/detail

02 Jul 2026 00:00Current

7High risk

Vulners AI Score7

CVSS 26.8

CVSS 37.8

EPSS0.00141

lapbeth_get_x25_dev lapbether c file linux kernel driver network device driver synchronization errors shared resources service failure vulnerability