CVE-2022-48483

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-02 · updated 2026-06-17
Weakness: CWE-22

Description

3CX before 18 Hotfix 1 build 18.0.3.461 on Windows allows unauthenticated remote attackers to read %WINDIR%\system32 files via /Electron/download directory traversal in conjunction with a path component that has a drive letter and uses backslash characters. NOTE: this issue exists because of an incomplete fix for CVE-2022-28005.

Affected products

3CX: before 18.0.3.461 — fixed in 18.0.3.461

How to fix

Upgrade to a fixed version: 3CX 18.0.3.461. Check the vendor advisory for mitigations.

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/
https://medium.com/%40frycos/pwning-3cx-phone-management-backends-from-the-internet-d0096339dd88
https://www.3cx.com/blog/change-log/phone-system-change-log/

Get alerted when CVE-2022-48483 or the next vulnerability affects your stack