What is CVE-2018-11551?

CVE-2018-11551 is a high-severity vulnerability in Nch Axon Pbx, classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2018-06-01.

How severe is CVE-2018-11551?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Nch Axon Pbx

CVE-2018-11551

AXON PBX 2.02 contains a DLL hijacking vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system. The vulnerability exists because a DLL file is loaded by 'pbxsetup.exe' improperly.

Published 2018-06-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.025 (84.1th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000

Affected products

Nch Axon Pbx — versions 2.02

Weakness classification (CWE)

CWE-426 — Untrusted Search Path

References

seclists.org/fulldisclosure/2018/May/69 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2018-11551?: CVE-2018-11551 is a high-severity vulnerability in Nch Axon Pbx, classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2018-06-01.
How severe is CVE-2018-11551?: High severity. CVSS v3 base score is 7.8 out of 10.