7.5

CVE-2019-5432: mqtt-packet_project mqtt-packet Buffer Over-read

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2019-5432DEBIAN-CVE-2019-5432GHSA-wv67-9jq7-8r69
Published 06-05-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-5432 is a high (CVSS 7.5) Buffer Over-read vulnerability in mqtt-packet_project mqtt-packet. EPSS estimates a 1.78% chance of exploitation in the next 30 days, higher than 77.9% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.78%
0%100%
Low · +0.19 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 06-05-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 4 sources · 3 versions

EPSS trend

Probability

1.78%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

+0.19 pp

From 1.59% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.78%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (hackerone.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • node-mqtt-packet< 6.0.0-2
Mqtt-packet_project1 product
  • mqtt-packet< 3.5.1 | ≥ 4.0.0, ≤ 4.1.3 | ≥ 5.0.0, ≤ 5.6.1 | ≥ 6.0.0, ≤ 6.1.2
Npm1 product
  • mqtt-packet< 3.5.1 | ≥ 4.0.0, < 4.1.3 | ≥ 5.0.0, < 5.6.1 | ≥ 6.0.0, < 6.1.2
Ubuntu1 product
  • node-mqtt-packetAll versions (No fix recorded)

4 vendors · 4 products

References

5 links