What’s Vulnerable › Vulnerabilities

CVE-2016-10523

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-05-31 · updated 2026-06-17
• Weakness: CWE-400

Description

MQTT before 3.4.6 and 4.0.x before 4.0.5 allows specifically crafted MQTT packets to crash the application, making a DoS attack feasible with very little bandwidth.

Affected products

• mqtt-packet: before 3.4.6; from 4.0.0 before 4.0.5 — fixed in 3.4.6, 4.0.5

How to fix

Upgrade to a fixed version: mqtt-packet 3.4.6, 4.0.5. Check the vendor advisory for mitigations.

References

• https://github.com/mcollina/mosca/issues/393
• https://github.com/mqttjs/mqtt-packet/pull/8
• https://nodesecurity.io/advisories/75
• https://github.com/mcollina/mosca/issues/393
• https://github.com/mqttjs/mqtt-packet/pull/8
• https://nodesecurity.io/advisories/75

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