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CVE-2026-37537

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CVE-2026-37537

Published: May 1, 2026

Modified: May 1, 2026

PUBLISHED

CVSS v3.1

8.1

HIGH

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.

VendorProductVersions

n/a

n/a

affected
n/a

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AC:L/AV:A/A:H/C:N/I:H/PR:N/S:U/UI:N

Attack Complexity

Low

Attack Vector

Adjacent

Availability

High

Confidentiality

None

Integrity

High

Privileges Required

None

Scope

Unchanged

User Interaction

None

References

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