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CVE-2026-42467 is a stack buffer overflow in Open-SAE-J1939 affecting versions through commit b6caf884df46435e539b1ecbf92b6c29b345bdfe (2025-11-30). The flaw is in SAE_J1939_Read_Binary_Data_Transfer_DM16 while parsing malformed J1939 traffic. According to the provided context, a crafted CAN frame on the J1939 bus can trigger unsafe handling during message parsing, resulting in a stack-based overwrite. The issue is described as independent from the related Open-SAE-J1939 size/overhead arithmetic bug tracked separately as CVE-2026-37534.
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Cross-references every affected SKU, including bundled OEM variants.
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