CVE-2019-5432
CVE-2019-5432 is a high-severity vulnerability in Mqtt-packet Project Mqtt-packet with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 2% (73rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Mqtt-packet Project Mqtt-packet
- Published:
- Last modified:
Description
A specifically malformed MQTT Subscribe packet crashes MQTT Brokers using the mqtt-packet module versions < 3.5.1, 4.0.0 - 4.1.3, 5.0.0 - 5.6.1, 6.0.0 - 6.1.2 for decoding.
Frequently asked questions
- What is CVE-2019-5432?
- A specifically malformed MQTT Subscribe packet crashes MQTT Brokers using the mqtt-packet module versions < 3.5.1, 4.0.0 - 4.1.3, 5.0.0 - 5.6.1, 6.0.0 - 6.1.2 for decoding.
- How severe is CVE-2019-5432?
- CVE-2019-5432 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2019-5432 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-5432?
- CVE-2019-5432 affects Mqtt-packet Project Mqtt-packet. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2019-5432?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2019-5432 published?
- CVE-2019-5432 was published on 2019-05-06 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:mqtt-packet_project:mqtt-packet:*:*:*:*:*:node.js:*:*
More vulnerabilities in Mqtt-packet Project Mqtt-packet
- CVE-2016-10523 — High (CVSS 7.5): MQTT before 3.4.6 and 4.0.x before 4.0.5 allows specifically crafted MQTT packets to crash the application, making a…
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