CVE-2024-10525

Eclipse Mosquito: Heap Buffer Overflow in my_subscribe_callback

State: Published
Severity: 7.2 High
Published: Oct 30, 2024
Updated: Nov 3, 2025
Reserved: Oct 30, 2024

Description

In Eclipse Mosquitto, from version 1.3.2 through 2.0.18, if a malicious broker sends a crafted SUBACK packet with no reason codes, a client using libmosquitto may make out of bounds memory access when acting in its on_subscribe callback. This affects the mosquitto_sub and mosquitto_rr clients.

Scores

CVSS	Score	Vector	Source
4.0	7.2 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N	eclipse

Weaknesses

CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
mosquittoEclipse Foundation	1.3.2 through 2.0.18Affected

References

https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/190
https://mosquitto.org/blog/2024/10/version-2-0-19-released/
https://github.com/eclipse-mosquitto/mosquitto/commit/8ab20b4ba4204fdcdec78cb4d9f03c944a6e0e1c
https://lists.debian.org/debian-lts-announce/2025/02/msg00022.html

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