CVE-2024-35512

5.3 mediumEPSS 0.5%

Medium (5.3). EPSS 0.5% chance of exploitation in the next 30 days.

hmq v1.5.5 is vulnerable to Denial of Service (DoS) due to a Null Pointer Exception. A remote attacker can trigger a broker crash by sending a specially crafted MQTT UNSUBSCRIBE packet with an illegal control character Topic. The failure to properly validate this field leads to a null pointer dereference, resulting in the immediate termination of the hmq process.

Severity

CVSS 3.1

5.3 medium

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
Published: 2024-05-29
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://gist.github.com/pengwGit/6ccca73a5acf91f31ff0d4185b15a3ea
https://gist.github.com/pengwGit/6ccca73a5acf91f31ff0d4185b15a3ea

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