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Case File

CVE-2018-12550

HIGH · CVSS 8.1 EPSS 1.35%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-03-27 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2018-12550
Severity
HIGH
CVSS
8.1
EPSS
1.35%

Original NVD Description

When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or contains only comments or blank lines, then Mosquitto will treat this as though no ACL file has been defined and use a default allow policy. The new behaviour is to have an empty ACL file mean that all access is denied, which is not a useful configuration but is not unexpected.