SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-15359

In the 3CX Phone System 15.5.3554.1, the Management Console typically listens to port 5001 and is prone to a directory traversal attack: "/api/RecordingList/DownloadRecord?file=" and "/api/SupportInfo?file=" are the vulnerable parameters.

EXPLOITMEDIUM 6.5EPSS 6.17%

Does this matter?

A public exploit is published in Exploit-DB, so the technical barrier is gone even though the severity is medium and EPSS is 6.2%. Treat it as high on anything reachable from the internet.

Description

In the 3CX Phone System 15.5.3554.1, the Management Console typically listens to port 5001 and is prone to a directory traversal attack: "/api/RecordingList/DownloadRecord?file=" and "/api/SupportInfo?file=" are the vulnerable parameters. An attacker must be authenticated to exploit this issue to access sensitive information to aid in subsequent attacks.

CVSS 3.0
6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
6.17% probability · 93th percentile
Public exploits
1 in Exploit-DB · first 16 October 2017
CISA KEV
Not listed
Weakness
CWE-22
Affected
3cx/3cx
Source
cve@mitre.org
EPSS trend
0%5%10%21 September 2026: 5.13%22 September 2026: 6.17%27 October 2026: 6.17%21 September 202627 October 2026

EPSS moved from 5.1% on 21 September 2026 to 6.2% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-42991source ↗3CX Phone System 15.5.3554.1 - Directory Traversallinux · Jens Regelwebapps16 October 2017no

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.