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CVE-2026-37537 Detail

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381 MITRE
https://github.com/DanielMartensson/Open-SAE-J1939 MITRE
https://github.com/collin80/Open-SAE-J1939 MITRE

Weakness Enumeration

CWE-ID CWE Name Source
CWE-190 Integer Overflow or Wraparound CISA-ADP  

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-37537
NVD Published Date:
05/01/2026
NVD Last Modified:
05/01/2026
Source:
MITRE