Mobile Devices (aka MDI) C4 OBD-II dongles with firmware 2.x and 3.4.x, as used in Metromile Pulse and other products, store SSH private keys that are the same across different customers' installations, which makes it easier for remote attackers to obtain access by leveraging knowledge of a private key from another installation.
Conclusion & alert: CVE-2015-2906 is rated Moderate Risk (56.8/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.40%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-02-23 | 0.65% | 0.40% | -0.25% |
| 2 | 2025-12-16 | 0.40% | 0.65% | +0.25% |
| 3 | 2025-11-29 | — | 0.40% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.0 | 2.0 | HIGH |
|
8.0 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
suse
|
high | CVE-2015-2906 severity important: SUSE including 3 source package names (libxerces-c-3_1, libxerces-c-3_1-32bit, xerces-c), 45 product×package rows across 17 product lines (HPE Helion OpenStack 8, SUSE Linux Enterprise High Performance Computing 12 SP5, … (17 product lines)): Known Not Affected 45. | https://www.suse.com/security/cve/CVE-2015-2906/ |
: <a href="https://cwe.mitre.org/data/definitions/321.html" target="_blank">CWE-321: Use of Hard-coded Cryptographic Key</a>
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mobile_devices | c4_obd-ii_dongle_firmware | <= 3.4 | cpe:2.3:o:mobile_devices:c4_obd-ii_dongle_firmware:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.kb.cert.org/vuls/id/209512 | Third Party Advisory US Government Resource |
| https://www.usenix.org/conference/woot15/workshop-program/presentation/foster |