What’s Vulnerable › Vulnerabilities

CVE-2019-12797

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-07-31 · updated 2026-06-17
• Weakness: CWE-798

Description

A clone version of an ELM327 OBD2 Bluetooth device has a hardcoded PIN, leading to arbitrary commands to an OBD-II bus of a vehicle.

Affected products

• Elmelectronics Elm27 Firmware: all versions

References

• https://www.kth.se/polopoly_fs/1.914060.1561621279%21/Ludvig%20and%20Daniel_final_dongles.pdf
• https://www.kth.se/polopoly_fs/1.917488.1564430206%21/elm327.pdf
• https://www.kth.se/polopoly_fs/1.914060.1561621279%21/Ludvig%20and%20Daniel_final_dongles.pdf
• https://www.kth.se/polopoly_fs/1.917488.1564430206%21/elm327.pdf

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