What is CVE-2018-12336?

CVE-2018-12336 is a critical-severity vulnerability in Ecos Secure Boot Stick, classified under Information Disclosure. CVSS score: 9.8/10. Published 2018-06-17.

How severe is CVE-2018-12336?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Information disclosure in Ecos Secure Boot Stick

CVE-2018-12336

Undocumented Factory Backdoor in ECOS Secure Boot Stick (aka SBS) 5.6.5 allows the vendor to extract confidential information via remote root SSH access.

Vulnerability class: Information Disclosure

Published 2018-06-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (73.9th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Ecos Secure Boot Stick
Ecos Secure Boot Stick Firmware — versions 5.6.5

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

telematik.prakinf.tu-ilmenau.de/ecos-sbs/advisory.html (Third Party Advisory, Mitigation)

Frequently asked questions

What is CVE-2018-12336?: CVE-2018-12336 is a critical-severity vulnerability in Ecos Secure Boot Stick, classified under Information Disclosure. CVSS score: 9.8/10. Published 2018-06-17.
How severe is CVE-2018-12336?: Critical severity. CVSS v3 base score is 9.8 out of 10.