PT-2026-36511 · Unknown · Open-Sae-J1939

Feng Ning · Published 2026-05-01 · Updated 2026-05-01 · CVE-2026-37537

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Name of the Vulnerable Software and Affected Versions collin80/Open-SAE-J1939 versions prior to commit 744024d4306bc387857dfce439558336806acb06

Description An integer underflow exists in the Transport Protocol Data Transfer handling. When the sequence number from a CAN frame, represented by the variable data[0], is 0, the index variable underflows to 255. This leads to an out-of-bounds write where data is written to an offset of 1791, exceeding the 1785-byte MAX TP DT buffer by 6 bytes.

Recommendations Update to a version containing commit 744024d4306bc387857dfce439558336806acb06 or later.

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2026-37537

Affected Products

Open-Sae-J1939

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-37537 · Security Note
• https://github.com/DanielMartensson/Open-SAE-J1939 · Note
• https://github.com/collin80/Open-SAE-J1939 · Note
• https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381 · Note
• https://twitter.com/infoflowcloud/status/2050270601445515575 · Twitter Post
• https://twitter.com/CVEnew/status/2050269605042528489 · Twitter Post