CVE-2026-37537
8.1
CVSS:3.1/AC:L/AV:A/A:H/C:N/I:H/PR:N/S:U/UI:N
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | n/a | n/a | affected |
Weaknesses
- n/a
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/DanielMartensson/Open-SAE-J1939
- https://github.com/collin80/Open-SAE-J1939
- https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381
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