Is CVE-2026-37537 actively exploited?

No active exploitation of CVE-2026-37537 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-37537 be exploited remotely?

Partially. CVE-2026-37537 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-37537?

CVE-2026-37537 has a CVSS score of 8.1 (HIGH).

HOME VULNERABILITIESCVE-2026-37537

HIGH

CVE-2026-37537

CWE-190Published: May 1, 2026· Updated: May 7, 2026

8.1

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.7th

Official Description

collin80/Open-SAE-J1939 thru commit 744024d4306bc387857dfce439558336806acb06 (2023-03-08) contains an integer underflow leading to out-of-bounds write in Transport Protocol Data Transfer handling. At line 23: uint8_t index = data[0] - 1. When data[0] (sequence number from CAN frame) is 0, index underflows to 255. Subsequent write at tp_dt->data[255*7 + i-1] reaches offset 1791, exceeding the MAX_TP_DT buffer (1785 bytes) by 6 bytes.

NVD Source

Technical Analysis

CVE-2026-37537 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.