peter bassill · operator
$ cve CVE-2017-2894 JSON

CVE-2017-2894

9.8
CRITICAL · CVSS 3.1 · EPSS 31% (pctl 98)

Patch early

EPSS 31% — above the 10% action threshold.

Description

An exploitable stack buffer overflow vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. A specially crafted MQTT SUBSCRIBE packet can cause a stack buffer overflow resulting in remote code execution. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.

Scoring

CVSS9.8 (CRITICAL, v3.1)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS31.05% — more likely to be exploited than 98% of all CVEs
WeaknessCWE-787
On CISA KEVno
Public exploitnone known
Published2017-11-07
Last modified2026-06-17

Affected (1)

VendorProduct
cesantamongoose

References

→ the Explorer  ·  watch your stack  ·  NVD