Service interruption via DM16 stack buffer overflow
Published May 1, 2026 · Updated May 1, 2026
Stack buffer overflow in Open-SAE-J1939's DM16 parser allows attackers on a J1939 CAN bus to interrupt the affected process. SAE_J1939_Read_Binary_Data_Transfer_DM16 overruns a stack buffer while handling a crafted frame; the disclosure does not identify the specific copy operation. Access to the target's J1939 bus is required; code through commit b6caf884df46435e539b1ecbf92b6c29b345bdfe is affected, and the established consequence is denial of service rather than data disclosure or modification.
Summary
What happened
Stack buffer overflow in Open-SAE-J1939's DM16 parser allows attackers on a J1939 CAN bus to interrupt the affected process. SAE_J1939_Read_Binary_Data_Transfer_DM16 overruns a stack buffer while handling a crafted frame; the disclosure does not identify the specific copy operation. Access to the target's J1939 bus is required; code through commit b6caf884df46435e539b1ecbf92b6c29b345bdfe is affected, and the established consequence is denial of service rather than data disclosure or modification.
The record
- CVE
- CVE-2026-42467
- Published
- May 1, 2026
- Updated
- May 1, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-400, T0814
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 1, 2026CVE publishedPublication date reported by the CVE source.
- May 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
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Public exploit references
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Technologies
Your stack
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Your stack
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