CVE-2019-12797

Name: CVE-2019-12797
Creator: NVD / NIST
Published: 2019-07-31T19:15:15.823+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.21%

Last modified Jun 17, 2026

CVE-2019-12797 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.21% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.21%

64.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-798

Affected Software

Vendor	Product	Versions
Elmelectronics	Elm27 Firmware	All versions

References

Timeline

Published: Jul 31, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-12797?

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.

How severe is CVE-2019-12797?

CVE-2019-12797 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.21% probability of exploitation in the next 30 days.

How do I fix CVE-2019-12797?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-12797?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST