CVE-2026-37534

State: Published
Severity: 9.8 Critical
Published: May 1, 2026
Updated: May 1, 2026
Reserved: Apr 6, 2026

Description

Integer underflow vulnerability in Open-SAE-J1939 thru commit b6caf884df46435e539b1ecbf92b6c29b345bdfe (2025-11-30) in SAE_J1939_Read_Transport_Protocol_Data_Transfer,allows attackers to write to arbitrary memory via crafted sequence number from the CAN frame.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-191 Integer Underflow (Wrap or Wraparound)

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://github.com/DanielMartensson/Open-SAE-J1939
https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381

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