CVE-2022-28005

Name: CVE-2022-28005
Creator: NVD / NIST
Published: 2022-05-06T15:15:08.787+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 6.18%

Last modified Jun 17, 2026

CVE-2022-28005 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in the 3CX Phone System Management Console prior to version 18 Update 3 FINAL. An unauthenticated attacker could abuse improperly secured access to arbitrary files on the server (via /Electron/download directory traversal in conjunction with a path component that uses backslash characters), leading to cleartext credential disclosure. EPSS estimates a 6.18% chance of exploitation in the next 30 days.

Description

An issue was discovered in the 3CX Phone System Management Console prior to version 18 Update 3 FINAL. An unauthenticated attacker could abuse improperly secured access to arbitrary files on the server (via /Electron/download directory traversal in conjunction with a path component that uses backslash characters), leading to cleartext credential disclosure. Afterwards, the authenticated attacker is able to upload a file that overwrites a 3CX service binary, leading to Remote Code Execution as NT AUTHORITY\SYSTEM on Windows installations. NOTE: this issue exists because of an incomplete fix for CVE-2022-48482.

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

6.18%

92.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-522

Affected Software

Vendor	Product	Versions
3cx	3cx	<= 18.0.3.450

References

https://medium.com/%40frycos/pwning-3cx-phone-management-backends-from-the-internet-d0096339dd88
https://www.3cx.com/blog/change-log/phone-system-change-log/Release Notes, Vendor Advisory
https://www.3cx.com/blog/releases/v18-security-hotfix/Release Notes, Vendor Advisory
https://www.3cx.com/blog/releases/v18-update-3-final/Release Notes, Vendor Advisory
https://medium.com/%40frycos/pwning-3cx-phone-management-backends-from-the-internet-d0096339dd88
https://www.3cx.com/blog/change-log/phone-system-change-log/Release Notes, Vendor Advisory
https://www.3cx.com/blog/releases/v18-security-hotfix/Release Notes, Vendor Advisory
https://www.3cx.com/blog/releases/v18-update-3-final/Release Notes, Vendor Advisory

Timeline

Published: May 6, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-28005?

How severe is CVE-2022-28005?

CVE-2022-28005 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 6.18% probability of exploitation in the next 30 days.

How do I fix CVE-2022-28005?

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-2022-28005?

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

Scan your code now

Source: NVD / NIST