CVE-2026-37537

collin80/Open-SAE-J1939 thru commit 744024d4306bc387857dfce439558336806acb06 (2023-03-08) contains an integer underflow leading to out-of-bounds write in…

High · published May 1, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
29.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AC:L/AV:A/A:H/C:N/I:H/PR:N/S:U/UI:N
CVSS v4.0
Not supplied
EPSS
0.00366 · 29.3th percentile
Published
2026-05-01T00:00Z
EPSS history
Timeline
  • 01 MAY 00:00Z
    collin80/Open-SAE-J1939 thru commit 744024d4306bc387857dfce439558336806acb06 (2023-03-08) contains an integer underflow leading to out-of-bounds write in…
    cvelistv5