Is CVE-2019-5432 in the CISA KEV catalog?

No. CVE-2019-5432 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-5432?

CVE-2019-5432 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-5432?

CVE-2019-5432 has an EPSS score of 1.59% (73th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-5432?

Upgrade node-mqtt-packet on debian 11 to 6.0.0-2 or later.

CVE & CISA-KEV Catalog

CVE-2019-5432

HIGHEPSS 73th pctl

7.5

CVSS v3

NVD

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.

CWE-126Buffer Over-read CWE-125Out-of-bounds Read

How to fix

Remediation Available

node-mqtt-packetDebian

Fixed in:6.0.0-2CVE-2019-5432

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.59%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Patch1

hackerone.com

Related Vulnerabilities

Other CWE-126 (Buffer Over-read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2017-7668	High	7.5	57%	-	Fix
CVE-2017-7679	Critical	9.8	39%	-	Fix
CVE-2025-21277	High	7.5	38%	-	Fix
CVE-2024-38071	High	7.5	36%	-	Fix
CVE-2009-2495	Medium	6.5	34%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.