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High severity8.1NVD Advisory· Published May 1, 2026· Updated May 7, 2026

CVE-2026-37537

CVE-2026-37537

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2
  • Collin80/Open Sae J1939references2 versions
    (expand)+ 1 more
    • (no CPE)
    • (no CPE)range: <= commit 744024d4306bc387857dfce439558336806acb06

Patches

Vulnerability mechanics

References

1

News mentions

0

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