What’s Vulnerable › Vulnerabilities

CVE-2018-12543

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 36.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-11-15 · updated 2026-06-17
• Weakness: CWE-617

Description

In Eclipse Mosquitto versions 1.5 to 1.5.2 inclusive, if a message is published to Mosquitto that has a topic starting with $, but that is not $SYS, e.g. $test/test, then an assert is triggered that should otherwise not be reachable and Mosquitto will exit.

Affected products

• The Eclipse Foundation Eclipse Mosquitto: from 1.5.0 through 1.5.2

References

• https://bugs.eclipse.org/bugs/show_bug.cgi?id=539295
• https://bugs.eclipse.org/bugs/show_bug.cgi?id=539295

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