CVE-2020-20184

Name: CVE-2020-20184
Creator: NVD / NIST
Published: 2020-12-14T20:15:12.513+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.65%

Last modified Jun 17, 2026

CVE-2020-20184 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. GateOne allows remote attackers to execute arbitrary commands via shell metacharacters in the port field when attempting an SSH connection.. EPSS estimates a 2.65% chance of exploitation in the next 30 days.

Description

GateOne allows remote attackers to execute arbitrary commands via shell metacharacters in the port field when attempting an SSH connection.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.65%

83.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Liftoffsoftware	Gateone	All versions

References

https://github.com/liftoff/GateOne/issues/736Exploit, Third Party Advisory
https://github.com/liftoff/GateOne/issues/736Exploit, Third Party Advisory

Timeline

Published: Dec 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-20184?

GateOne allows remote attackers to execute arbitrary commands via shell metacharacters in the port field when attempting an SSH connection.

How severe is CVE-2020-20184?

CVE-2020-20184 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.65% probability of exploitation in the next 30 days.

How do I fix CVE-2020-20184?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-20184?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST