A flaw was found in the Linux kernel in net/can/bcm.c in can: bcm, where an unprivileged local user can exploit this vulnerability to execute arbitrary code within the kernel, which leads to a local privilege escalation (LPE). This allows the attacker to gain root privileges and take full control of the affected system.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

To mitigate this vulnerability, prevent the `bcm` kernel module from loading if it is not required. Create a file named `/etc/modprobe.d/blacklist-bcm.conf` with the content `blacklist bcm`. A system reboot is required for this change to take effect. This mitigation may impact functionality that relies on the CAN BCM module.

History

Wed, 29 Jul 2026 10:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in the kernel. An unprivileged local user can exploit this vulnerability to execute arbitrary code within the kernel, which leads to a local privilege escalation (LPE). This allows the attacker to gain root privileges and take full control of the affected system. A flaw was found in the Linux kernel in net/can/bcm.c in can: bcm, where an unprivileged local user can exploit this vulnerability to execute arbitrary code within the kernel, which leads to a local privilege escalation (LPE). This allows the attacker to gain root privileges and take full control of the affected system.

Mon, 27 Jul 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Mon, 27 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 27 Jul 2026 10:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in the kernel. An unprivileged local user can exploit this vulnerability to execute arbitrary code within the kernel, which leads to a local privilege escalation (LPE). This allows the attacker to gain root privileges and take full control of the affected system.
Title Kernel: can:bcm: arbitrary kernel code execution leading to escalate privileges
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-825
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-05T17:29:26.681Z

Reserved: 2026-07-27T08:19:11.242Z

Link: CVE-2026-17523

cve-icon Vulnrichment

Updated: 2026-07-27T13:44:29.321Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-07-27T10:16:36.270

Modified: 2026-07-29T11:16:48.620

Link: CVE-2026-17523

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T18:00:11Z

Weaknesses