CVE-2021-45491

Name: CVE-2021-45491
Creator: NVD / NIST
Published: 2022-03-28T02:15:06.99+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.79%

Last modified Jun 17, 2026

CVE-2021-45491 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 3CX System through 2022-03-17 stores cleartext passwords in a database.. EPSS estimates a 0.79% chance of exploitation in the next 30 days.

Description

3CX System through 2022-03-17 stores cleartext passwords in a database.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.79%

51.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-312

Affected Software

Vendor	Product	Versions
3cx	3cx	<= 2022-03-17

References

http://packetstormsecurity.com/files/166386/3CX-Phone-System-Cleartext-Passwords.htmlThird Party Advisory, VDB Entry
https://www.3cx.com/community/forums/posts-articles-news/Vendor Advisory
http://packetstormsecurity.com/files/166386/3CX-Phone-System-Cleartext-Passwords.htmlThird Party Advisory, VDB Entry
https://www.3cx.com/community/forums/posts-articles-news/Vendor Advisory

Timeline

Published: Mar 28, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45491?

3CX System through 2022-03-17 stores cleartext passwords in a database.

How severe is CVE-2021-45491?

CVE-2021-45491 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.79% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45491?

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-2021-45491?

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

Scan your code now

Source: NVD / NIST