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async_mqtt

Use after free in endpoint destructors in Redboltz async_mqtt 10.2.5 allows local users to cause a denial of service via triggering SSL initialization failure that results in incorrect destruction order between io_context and endpoint objects.

CVE-2025-65503 identifies a use-after-free vulnerability in the Redboltz async_mqtt library version 10.2.5, specifically within the destructors of endpoint objects. The flaw arises due to an incorrect destruction order between io_context and endpoint objects when an SSL initialization failure is triggered. This improper sequence causes the endpoint destructor to access memory that has already been freed, leading to undefined behavior and a denial of service (DoS) condition. The vulnerability is exploitable remotely without requiring authentication or user interaction, as it can be triggered by causing the SSL initialization to fail during connection setup. The vulnerability is categorized under CWE-416, indicating a use-after-free memory corruption issue. The CVSS v3.1 base score is 7.5 (high), reflecting the network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to availability. No patches or fixes are currently linked, and no known exploits have been reported in the wild. This vulnerability primarily affects systems that utilize the async_mqtt library for MQTT communication, commonly found in IoT devices, messaging middleware, and applications relying on asynchronous MQTT client implementations.

Detailed information about CVE-2025-65503: n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2025-65503: n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2025-65503: n/a

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