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CVE-2026-8686

HIGH CVSS: 7.5 Published: 2026-05-15 Modified: 2026-06-17

Description

Missing bounds validation in the MQTT v5.0 property parser in coreMQTT before 5.0.1 allows an MQTT broker to cause a denial of service by sending a crafted packet. To remediate this issue, users should upgrade to v5.0.1.

Affected Platforms

Freertos Coremqtt

Weakness Type

CWE-125

References