CVEvulnerability
CVE-2025-50518
9.8 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2025-08-14
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
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.
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://github.com/IreneTheITCrowd/blog/blob/main/libcoap-vulnerability.md github.com
- https://github.com/IreneTheITCrowd/blog/issues/1 github.com
- https://github.com/obgm/libcoap/issues/1724#issuecomment-3199631257 github.com
- https://github.com/obgm/libcoap/issues/1724#issuecomment-3234613482 github.com