Time-of-check Time-of-use (TOCTOU) Race Condition in PCAN-Linux driver - CVE-2025-6217
Published: June 19, 2025
Vulnerability identifier: #VU111326
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-6217
CWE-ID: CWE-367
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: PEAK-System
Affected software:
PCAN-Linux driver
PCAN-Linux driver
Detailed vulnerability description
The vulnerability allows a local user to compromise the target system.
The vulnerability exists due to a time-of-check, time-of-use (TOCTOU) race condition within the handling of the PCANFD_ADD_FILTERS IOCTL. A local user can gain access to sensitive information on the system.
How to mitigate CVE-2025-6217
Install updates from vendor's website.