CVSS
7.5
CVSS v3.1
EPSS
0.3%
Exploit Prediction Score
Published
August 7, 2026
Exploitability
EPSS probability 0.3%
In sol commit 373d848 (2024-12-12), the broker does not fully release resources when handling malformed or duplicate CONNECT packets. When clients send invalid CONNECT packets - either due to repeated attempts or failed authentication - the server may silently drop the connection or send a CONNACK but fail to close the session or deallocate internal resources. This behavior allows an attacker to create numerous half-open connections that consume memory and file descriptors indefinitely, potentially triggering the Linux OOM killer and causing a denial of service.
No package data available.
Publisher and database URLs for this record (shown for attribution; reading stays in Bugflare).