Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381
- https://github.com/DanielMartensson/Open-SAE-J1939
- https://github.com/collin80/Open-SAE-J1939
FAQ
What is CVE-2026-37537?
CVE-2026-37537 is a vulnerability with a CVSS score of 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 ...
How severe is CVE-2026-37537?
CVE-2026-37537 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-37537?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.