CVE-2026-37534 Details
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.
An integer underflow vulnerability has been identified in the Open-SAE-J1939 library, specifically in versions through commit b6caf884df46435e539b1ecbf92b6c29b345bdfe. This vulnerability arises in the 'SAE_J1939_Read_Transport_Protocol_Data_Transfer' function, where the library improperly calculates the size of incoming data from CAN frames. Attackers can exploit this flaw by sending crafted CAN frames that manipulate the sequence number, leading to out-of-bounds memory writes.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 1, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381 | [email protected] | |
| https://github.com/DanielMartensson/Open-SAE-J1939 | [email protected] |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-191 | Integer Underflow (Wrap or Wraparound) | CISA-ADP |
Affected Products
No affected product data is available for this CVE.
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 1, 2026 | CVE Modified | CISA-ADP |
| May 1, 2026 | New CVE Received | [email protected] |