CVE-2019-5432 json
Improper Input Validation and Buffer Over-read in mqtt-packet
published 2019-05-06 7 y ago modified 2026-06-17 4 mo ago also GHSA-wv67-9jq7-8r69 , EUVD-2019-0481
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm mqtt-packet 3.5.1, 4.1.3, 5.6.1, 6.1.2
- mqtt-packet_project mqtt-packet 3.5.1
- node-mqtt-packet Debian 14, Debian 13, Debian 12 6.0.0-2
debian advisories DEBIAN-CVE-2019-5432
- hackerone.com/reports/541354 advisory
Exploit prediction
1.78% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- hackerone.com https://hackerone.com/reports/541354 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| GitHub | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | mqtt-packet | <3.5.1 >=4.0.0, <4.1.3 >=5.0.0, <5.6.1 >=6.0.0, <6.1.2 |
3.5.1 4.1.3 5.6.1 6.1.2 |
Affected products
- n/a mqtt-packet
Classification
References
-
hackerone.com
/reports/541354
web, exploit, issue-tracking, patch, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2019-5432
advisory
Sources
- CVE List CVE-2019-5432
- GitHub Advisory GHSA-wv67-9jq7-8r69
- NVD CVE-2019-5432
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.