CVE-2019-19307

An integer overflow in parse_mqtt in mongoose.c in Cesanta Mongoose 6. ...

Published 26 Nov 2019Modified 17 Jun 2026CWE 125, 190, 787, 835

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD.

Description

An integer overflow in parse_mqtt in mongoose.c in Cesanta Mongoose 6.16 allows an attacker to achieve remote DoS (infinite loop), or possibly cause an out-of-bounds write, by sending a crafted MQTT protocol packet.

Affected packages and fixed versions

Source	Package	Fixed in
debian 11	swupdate	no fix listed
debian 12	swupdate	2021.04-1
debian 13	swupdate	2021.04-1
debian 14	swupdate	2021.04-1
echo	swupdate	2021.04-1

References

https://github.com/cesanta/mongoose/issues/1055

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Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.