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CVE-2018-20162

CriticalPublished

Digi TransPort LR54 4.4.0.26 and possible earlier devices have Improper Input Validation that allows users with 'super' CLI access privileges to bypass a...

Published: Mar 17, 2019
Updated: Aug 5, 2024
Assigning CNA: mitre
Evidence observed: Aug 4, 2026

Primary CVSS

9.9/ 10Critical

nvd · CVSS 3.0

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS probability estimate

3.2%

Low · next 30 days

Percentile: 87.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Digi TransPort LR54 4.4.0.26 and possible earlier devices have Improper Input Validation that allows users with 'super' CLI access privileges to bypass a restricted shell and execute arbitrary commands as root.

Sources

CVE-2018-20162-digi-lr54-restricted-shell-escapePoC
Proof-of-concept exploit for CVE-2018-20162: sandbox escape in Digi TransPort LR54 LTE router via SIGINT handling flaw, yielding root shell access.

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