Detections
Analytics
CVE-2025-50518
critical
Description
A use-after-free vulnerability exists in the coap_delete_pdu_lkd function within coap_pdu.c of the libcoap library. This issue occurs due to improper handling of memory after the freeing of a PDU object, leading to potential memory corruption or the possibility of executing arbitrary code. NOTE: this is disputed by the Supplier because it only occurs when an application uses libcoap incorrectly.
References
https://github.com/obgm/libcoap/issues/1724#issuecomment-3234613482
https://github.com/obgm/libcoap/issues/1724#issuecomment-3199631257
https://github.com/IreneTheITCrowd/blog/issues/1
https://github.com/IreneTheITCrowd/blog/blob/main/libcoap-vulnerability.md