CVE-2021-3855

Name: CVE-2021-3855
Creator: NVD / NIST
Published: 2023-03-01T08:15:10.03+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.89%

Last modified Jun 17, 2026

CVE-2021-3855 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in Liman Central Management System Liman MYS (HTTP/Controllers, CronMail, Jobs modules) allows Command Injection. This issue affects Liman Central Management System: from 1.7.0 before 1.8.3-462.. EPSS estimates a 1.89% chance of exploitation in the next 30 days.

Description

Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in Liman Central Management System Liman MYS (HTTP/Controllers, CronMail, Jobs modules) allows Command Injection. This issue affects Liman Central Management System: from 1.7.0 before 1.8.3-462.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.89%

76.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Liman	Port Mys	>= 1.7.0, < 1.8.3-462

References

https://docs.liman.dev/baslangic/guvenlikVendor Advisory
https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-23-0109
https://www.usom.gov.tr/bildirim/tr-23-0109Third Party Advisory, US Government Resource
https://docs.liman.dev/baslangic/guvenlikVendor Advisory
https://www.usom.gov.tr/bildirim/tr-23-0109Third Party Advisory, US Government Resource

Timeline

Published: Mar 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-3855?

How severe is CVE-2021-3855?

CVE-2021-3855 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.89% probability of exploitation in the next 30 days.

How do I fix CVE-2021-3855?

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-2021-3855?

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

Scan your code now

Source: NVD / NIST