Buffer overflow in Linux kernel - CVE-2025-68308
Published: December 16, 2025
Vulnerability identifier: #VU120120
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-68308
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the kvaser_usb_leaf_wait_cmd() and kvaser_usb_leaf_read_bulk_callback() functions in drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c. A local user can escalate privileges on the system.
How to mitigate CVE-2025-68308
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/028e89c7e8b4346302e88df01cc50e0a1f05791a
- https://git.kernel.org/stable/c/0897cea266e39166a36111059ba147192b36592f
- https://git.kernel.org/stable/c/0c73772cd2b8cc108d5f5334de89ad648d89b9ec
- https://git.kernel.org/stable/c/58343e0a4d43699f0e2f5b169384bbe4c0217add
- https://git.kernel.org/stable/c/69c7825df64e24dc15d31631a1fc9145324b1345
- https://git.kernel.org/stable/c/bd8135a560cf6e64f0b98ed4daadf126a38f7f48
- https://git.kernel.org/stable/c/e9dd83a75a7274edef21682c823bf0b66d7b6b7f