MGOS Command Injection

published 2024-12-20 22 mo ago modified 2026-06-17 4 mo ago also EUVD-2020-5933

cvss: 7.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits: 0; none known

A command injection is possible through the user interface, allowing arbitrary command execution as the root user. oMG2000 running MGOS 3.15.1 or earlier is affected.

MG90 running MGOS 4.2.1 or earlier is affected.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 22 mo ago (2024-12-26)

Exploit prediction

0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Sierra Wireless MGOS

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command
CWE-77 Improper Neutralization of Special Elements used in a Command

References

source.sierrawireless.com /-/media/support_downloads/security-bulletins/pdf/swi-psa-2020-006---mgos-security-update.ashx

Sources

CVE List CVE-2020-13712
NVD CVE-2020-13712

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary