CVE-2024-8376

Name: CVE-2024-8376
Creator: NVD / NIST
Published: 2024-10-11T16:15:14.86+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 0.75%

Last modified Jun 17, 2026

CVE-2024-8376 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. In Eclipse Mosquitto up to version 2.0.18a, an attacker can achieve memory leaking, segmentation fault or heap-use-after-free by sending specific sequences of "CONNECT", "DISCONNECT", "SUBSCRIBE", "UNSUBSCRIBE" and "PUBLISH" packets.. EPSS estimates a 0.75% chance of exploitation in the next 30 days.

Description

In Eclipse Mosquitto up to version 2.0.18a, an attacker can achieve memory leaking, segmentation fault or heap-use-after-free by sending specific sequences of "CONNECT", "DISCONNECT", "SUBSCRIBE", "UNSUBSCRIBE" and "PUBLISH" packets.

Metrics

CVSS 3.1

7.5/10

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

CVSS 4.0

7.2/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.75%

50.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Eclipse	Mosquitto	< 2.0.19

References

https://github.com/eclipse-mosquitto/mosquitto/commit/1914b3ee2a18102d0a94cbdbbfeae1afa03edd17Patch
https://github.com/eclipse/mosquitto/releases/tag/v2.0.19Patch, Product
https://gitlab.eclipse.org/security/cve-assignement/-/issues/26Issue Tracking
https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/216Issue Tracking
https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/217Issue Tracking
https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/218Issue Tracking
https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/227Issue Tracking
https://mosquitto.org/Product

Timeline

Published: Oct 11, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-8376?

How severe is CVE-2024-8376?

CVE-2024-8376 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.

How do I fix CVE-2024-8376?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-8376?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST