CVE-2018-12550
8.1
HIGH
CVSS 3.1
EPSS 0.40%
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.
How to fix CVE-2018-12550
To remediate CVE-2018-12550, upgrade the affected package to a fixed version below.
- —upgrade to 1.5.6-r0 or later
- —upgrade to 1.5.6-1 or later
Is CVE-2018-12550 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.5.6-r0
- from 0, < 1.5.6-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |