CVE-2025-65953
MEDIUM EPSS 9.1%
Published Nov 25, 20257mo ago · Modified Jun 17, 20261w ago
6.0 CVSS 4.0
Published Nov 25, 2025 7mo ago
Last Modified Jun 17, 2026 1w ago
Description
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Prior to version 0.22.5, a Heap-Use-After-Free (UAF) vulnerability exists in the TCP transport component of NanoMQ, which relies on the underlying NanoNNG library (specifically in src/sp/transport/mqtt/broker_tcp.c). The vulnerability is due to improper resource management and premature cleanup of message and pipe structures under specific malformed MQTTV5 retain message traffic conditions. This issue has been patched in version 0.22.5.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
9.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-416 Use After Free Memory Safety
References 1
- github.com https://github.com/nanomq/nanomq/security/advisories/GHSA-r95p-wjm8-2qxr
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.