An issue was discovered in the 3CX Phone System Management Console prior to version 18 Update 3 FINAL
Published May 6, 2022
9.8
CRITICALCVSS 3.1
EPSS 6.73%
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (37 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 6.73% (0.06729) | 93.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.18% (0.06179) | 92.56th | v5 (v2026.06.15) |
| Jun 7, 2026 | 29.88% (0.29882) | 96.75th | v4 (v2025.03.14) |
| Jun 4, 2026 | 38.25% (0.38245) | 97.31th | v4 (v2025.03.14) |
| May 30, 2026 | 35.28% (0.35282) | 97.13th | v4 (v2025.03.14) |
| May 23, 2026 | 22.23% (0.22232) | 95.89th | v4 (v2025.03.14) |
| Mar 5, 2026 | 24.73% (0.24727) | 96.03th | v4 (v2025.03.14) |
| Feb 25, 2026 | 26.47% (0.26475) | 96.21th | v4 (v2025.03.14) |
| Jan 30, 2026 | 21.30% (0.21299) | 95.53th | v4 (v2025.03.14) |
| Jan 18, 2026 | 18.99% (0.18989) | 95.12th | v4 (v2025.03.14) |
| Nov 30, 2025 | 12.46% (0.12464) | 93.64th | v4 (v2025.03.14) |
| Nov 21, 2025 | 6.25% (0.06246) | 90.49th | v4 (v2025.03.14) |
| Nov 18, 2025 | 23.14% (0.23136) | 95.56th | v4 (v2025.03.14) |
| Oct 13, 2025 | 6.25% (0.06246) | 90.43th | v4 (v2025.03.14) |
| May 7, 2025 | 5.21% (0.05213) | 89.37th | v4 (v2025.03.14) |
| Mar 30, 2025 | 6.73% (0.06731) | 90.37th | v4 (v2025.03.14) |
| Mar 29, 2025 | 13.53% (0.13526) | 90.35th | v4 (v2025.03.14) |
| Mar 28, 2025 | 6.73% (0.06731) | 90.38th | v4 (v2025.03.14) |
| Mar 27, 2025 | 13.53% (0.13526) | 93.24th | v4 (v2025.03.14) |
| Mar 20, 2025 | 6.73% (0.06731) | 90.48th | v4 (v2025.03.14) |
| Mar 19, 2025 | 13.53% (0.13526) | 93.38th | v4 (v2025.03.14) |
| Mar 17, 2025 | 6.73% (0.06731) | 90.58th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.10% (0.02100) | 89.58th | v3 (v2023.03.01) |
| Feb 23, 2024 | 1.57% (0.01570) | 86.88th | v3 (v2023.03.01) |
| Dec 26, 2023 | 1.49% (0.01493) | 85.43th | v3 (v2023.03.01) |
| Dec 12, 2023 | 1.03% (0.01026) | 82.07th | v3 (v2023.03.01) |
| Nov 27, 2023 | 0.87% (0.00869) | 80.48th | v3 (v2023.03.01) |
| Oct 17, 2023 | 0.84% (0.00844) | 80.23th | v3 (v2023.03.01) |
| Jun 8, 2023 | 0.86% (0.00858) | 79.96th | v3 (v2023.03.01) |
| May 13, 2023 | 0.83% (0.00834) | 79.60th | v3 (v2023.03.01) |
| May 8, 2023 | 0.53% (0.00533) | 73.69th | v3 (v2023.03.01) |
| May 2, 2023 | 0.45% (0.00447) | 71.24th | v3 (v2023.03.01) |
| Apr 6, 2023 | 0.32% (0.00315) | 65.72th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.29% (0.00287) | 63.86th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.63% (0.05634) | 90.24th | v2 (v2022.01.01) |
| May 19, 2022 | 5.63% (0.05634) | 89.40th | v2 (v2022.01.01) |
| May 7, 2022 | 4.43% (0.04428) | 87.17th | v2 (v2022.01.01) |
References (4)
- 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 NotesVendor Advisory
- https://www.3cx.com/blog/releases/v18-security-hotfix/ Release NotesVendor Advisory
- https://www.3cx.com/blog/releases/v18-update-3-final/ Release NotesVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| 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 NotesVendor Advisory | |
| https://www.3cx.com/blog/releases/v18-security-hotfix/ | Release NotesVendor Advisory | |
| https://www.3cx.com/blog/releases/v18-update-3-final/ | Release NotesVendor Advisory |
Change history (0)
No recorded changes yet.