DanielMartensson/Open-SAE-J1939

DanielMartensson/Open-SAE-J1939

GitHubGitHub
GitHubgithub.com
Releases0
Stars615
SAE J1939 protocol free to use for embedded systems or PC with CAN-bus
Log in to subscribe

CVE History

CVEPublishedCVSS v3CVSS v2
CVE-2026-37534↗
9.8 CRITICAL—

Integer underflow vulnerability in Open-SAE-J1939 thru commit b6caf884df46435e539b1ecbf92b6c29b345bdfe (2025-11-30) in SAE_J1939_Read_Transport_Protocol_Data_Transfer,allows attackers to write to arbitrary memory via crafted sequence number from the CAN frame.

CVE-2026-37537↗
8.1 HIGH—

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.