CVE-2025-6217 Details
Description
PEAK-System Driver PCANFD_ADD_FILTERS Time-Of-Check Time-Of-Use Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of PEAK-System Driver. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of the PCANFD_ADD_FILTERS IOCTL. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the kernel. Was ZDI-CAN-24161.
A time-of-check time-of-use (TOCTOU) information disclosure vulnerability has been identified in the PEAK-System Driver. This issue arises from improper locking mechanisms when handling the PCANFD_ADD_FILTERS IOCTL, allowing local attackers to disclose sensitive information. Exploitation of this vulnerability requires low-privileged code execution on the target system. Furthermore, this flaw could be leveraged, in conjunction with other vulnerabilities, to execute arbitrary code within the kernel context.
Users can upgrade to PEAK-System Driver version 8.19.0 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 23, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-25-408/ | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-367 | Time-of-check Time-of-use (TOCTOU) Race Condition | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| peak-system device driver | 8.18.0 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Aug 18, 2025 | Initial Analysis | [email protected] |
| Jun 21, 2025 | New CVE Received | [email protected] |