Pcan Windows Can Device Drivers CVEs and Security Vulnerabilities

CVE-2026-110322

HMS Networks PEAK-System PCAN Windows drivers Untrusted Pointer Dereference

The PEAK-System PCAN type 0x4030 processing path fails to validate a selected/returned object pointer before dereferencing fixed fields during post-processing.

CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed

Vendors

Hms Networks

Products

Pcan Windows Can Device Drivers Peak-system Device Driver Setup

CVE-2026-105960

HMS Networks PEAK-System PCAN Windows drivers Improper Handling of Length Parameter Inconsistency

PEAK-System PCAN contains a vulnerable operation involving a variable-length receive-record copy. The driver uses a requested or queued record count without sufficiently capping the copy to the actual caller-supplied output length.

CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed

Vendors

Hms Networks

Products

Pcan Windows Can Device Drivers Peak-system Device Driver Setup

CVE-2026-103672

HMS Networks PEAK-System PCAN Windows drivers Improper Validation of Array Index

The PEAK-System PCAN parser indexes a length table using attacker-controlled DLC without enforcing DLC <= 0x0f, then copies attacker payload from record+0x1c into a fixed-size stack destination.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Hms Networks

Products

Pcan Windows Can Device Drivers Peak-system Device Driver Setup

CVE-2026-109576

HMS Networks PEAK-System PCAN Windows drivers Out-of-bounds Write

The parser in PEAK-System PCAN driver correctly detected the malformed record, but the loop iterating the record list advanced its processed-bytes counter even when a record had been rejected as invalid.

CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed

Vendors

Hms Networks

Products

Pcan Windows Can Device Drivers Peak-system Device Driver Setup

CVE-2026-101103

HMS Networks PEAK-System PCAN Windows drivers Classic Buffer Overflow

The PEAK-System PCAN diagnostic call did not validate that the caller-supplied output buffer was large enough to hold the output record.

CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed

Vendors

Hms Networks

Products

Pcan Windows Can Device Drivers Peak-system Device Driver Setup

Search vulnerabilities

HMS Networks PEAK-System PCAN Windows drivers Untrusted Pointer Dereference

HMS Networks PEAK-System PCAN Windows drivers Improper Handling of Length Parameter Inconsistency

HMS Networks PEAK-System PCAN Windows drivers Improper Validation of Array Index

HMS Networks PEAK-System PCAN Windows drivers Out-of-bounds Write

HMS Networks PEAK-System PCAN Windows drivers Classic Buffer Overflow