CVE-2026-37537 (GCVE-0-2026-37537)

Vulnerability from cvelistv5 – Published: 2026-05-01 00:00 – Updated: 2026-05-01 19:44
VLAI
Summary
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.
Severity
8.1 (High)
CVSS:3.1/AC:L/AV:A/A:H/C:N/I:H/PR:N/S:U/UI:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-01 19:31 UTC
CWE
  • n/a
  • CWE-190 - Integer Overflow or Wraparound
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2337 records in the last 180 days details
References
Show details on NVD website
To clipboard 

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