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Vulnerability DatabaseCVE-2025-50518
CVE-2025-50518:
Linux Debian vulnerability analysis and mitigation
Overview
A use-after-free vulnerability has been identified in the coapdeletepdulkd function within coappdu.c of the libcoap library. The vulnerability, tracked as CVE-2025-50518, was disclosed on August 14, 2025. This security flaw affects the libcoap library, which is a C implementation of the Constrained Application Protocol (CoAP) (NVD).
Technical details
The vulnerability stems from improper handling of memory after the freeing of a PDU (Protocol Data Unit) object in the coapdeletepdu_lkd function. The issue has received a CVSS v3.1 base score of 9.8 (CRITICAL) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. The vulnerability has been classified as CWE-416 (Use After Free) (NVD).
Impact
The vulnerability can lead to memory corruption or potential arbitrary code execution when exploited. Given the critical CVSS score and the nature of use-after-free vulnerabilities, successful exploitation could allow attackers to execute arbitrary code or cause system crashes (NVD).
Additional resources
Source: This report was generated using AI
Related Linux Debian vulnerabilities:
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