Information disclosure in PEAK-System PCAN-Linux driver



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-6217
CWE-ID CWE-367
Exploitation vector Local
Public exploit N/A
Vulnerable software
 PCAN-Linux driver
Hardware solutions / Drivers

Vendor PEAK-System

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Time-of-check Time-of-use (TOCTOU) Race Condition

EUVDB-ID: #VU111326

Risk: Low

CVSSv4.0: 1.1 [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 - Time-of-check Time-of-use (TOCTOU) Race Condition

Exploit availability: No

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

PCAN-Linux driver: before 8.19.0

CPE2.3 External links

https://www.zerodayinitiative.com/advisories/ZDI-25-408/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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