CVE-2019-19307

9.8 criticalEPSS 42%

Critical (9.8) in cesanta mongoose. EPSS 42% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 42% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
CWEs: CWE-125, CWE-190, CWE-787, CWE-835
Published: 2019-11-26
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cesanta:mongoose

References

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

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