CVE-2015-2907: Mobile Devices (aka MDI) C4 OBD-II dongles with firmware 2.x and 3.4.x, as used in Metromile Pulse and other p

Q: How do I fix CVE-2015-2907?

c4 obd-ii dongle firmware: upgrade to newer than 3.4. Exact commands for each OS are on this page.

Q: Is CVE-2015-2907 being exploited?

CVE-2015-2907 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2015-2907 affect?

CVE-2015-2907 affects c4 obd-ii dongle firmware. Severity is high (CVSS 9.0). Mobile Devices (aka MDI) C4 OBD-II dongles with firmware 2.x and 3.4.x, as used in Metromile Pulse and other products, have hardcoded SSH credentials, which makes it easier for remote attackers to obtain access by leveraging knowledge of th

Q: How urgent is CVE-2015-2907?

Priority 53/100. Critical severity

This month

HIGH 9.0UPGRADE

CVE-2015-2907 is a high-severity flaw (CVSS 9.0) affecting c4 obd-ii dongle firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Mobile Devices (aka MDI) C4 OBD-II dongles with firmware 2.x and 3.4.x, as used in Metromile Pulse and other products, have hardcoded SSH credentials, which makes it easier for remote attackers to obtain access by leveraging knowledge of the required username and password.

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.0 (High)
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Published	2015-08-23
Last modified	2026-06-17

Publisher (CNA): CERT/CC · Vendor: mobile devices

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2015-08-23 21:59 UTCPublished CVE record published
2026-06-17 00:24 UTCUpdated Record last modified

mobile devices c4 obd-ii dongle firmware UPGRADE

Affected: <= 3.4

Fixed in: newer than 3.4

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-2907?

c4 obd-ii dongle firmware: upgrade to newer than 3.4. Exact commands for each OS are on this page.

Is CVE-2015-2907 being exploited?

CVE-2015-2907 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-2907 affect?

CVE-2015-2907 affects c4 obd-ii dongle firmware. Severity is high (CVSS 9.0). Mobile Devices (aka MDI) C4 OBD-II dongles with firmware 2.x and 3.4.x, as used in Metromile Pulse and other products, have hardcoded SSH credentials, which makes it easier for remote attackers to obtain access by leveraging knowledge of th

How urgent is CVE-2015-2907?

Priority 53/100. Critical severity

Related CVEs

CVE-2015-2908 HIGH 9.0 UPGRADE Mobile Devices (aka MDI) C4 OBD-II dongles with firmware 2.x and 3.4.x, as used in Metromile Pulse and other p
CVE-2015-2906 HIGH 9.0 UPGRADE Mobile Devices (aka MDI) C4 OBD-II dongles with firmware 2.x and 3.4.x, as used in Metromile Pulse and other p

References

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