CVE-2022-28005
mediumpriority · track · 42EPSS 0.083 · 95 %ileEUUSEPSS · scored 2026-10-26
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 5–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (13)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2022-28005/cnnvd
- https://medium.com/@frycos/pwning-3cx-phone-management-backends-from-the-internet-d0096339dd88cnnvd
- https://www.3cx.com/blog/change-log/phone-system-change-log/cnnvd
- https://www.3cx.com/blog/releases/v18-security-hotfix/cnnvd
- https://www.3cx.com/blog/releases/v18-update-3-final/cnnvd
- https://medium.com/%40frycos/pwning-3cx-phone-management-backends-from-the-internet-d0096339dd88enisa_euvd
- https://www.3cx.com/blog/change-log/phone-system-change-log/enisa_euvd
- https://www.3cx.com/blog/releases/v18-security-hotfix/enisa_euvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan