Out-of-bounds Read in Cesanta Mongoose

CVE-2018-18765

An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in mg_mqtt_next_subscribe_topic. A specially crafted MQTT SUBSCRIBE packet can…

Vulnerability class: Buffer Overflow

EPSS: 0.018 (76.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-18765?
CVE-2018-18765 is a critical-severity vulnerability in Cesanta Mongoose, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2018-10-29.
How severe is CVE-2018-18765?
Critical severity. CVSS v3 base score is 9.1 out of 10.