CVE-2017-7651

Mosquitto vulnerability

CVSS

7.5

EPSS

5.3%

EPSS pct

92th

Exploited

No known

In Eclipse Mosquitto 1.4.14, a user can shutdown the Mosquitto server simply by filling the RAM memory with a lot of connections with large payload. This can be done without authentications if occur in connection phase of MQTT protocol.

Affected vendor

Eclipse

Affected product

Mosquitto

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness type (CWE)

CWE-789
CWE-400 — Uncontrolled Resource Consumption

Published

2018-04-24

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 5.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2017-7651

Confirm whether Eclipse Mosquitto is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-7651.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-7651

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