CVEs-PoC/2025/CVE-2025-5399.md

CVE-2025-5399

Description

Due to a mistake in libcurl's WebSocket code, a malicious server can send aparticularly crafted packet which makes libcurl get trapped in an endlessbusy-loop.There is no other way for the application to escape or exit this loop otherthan killing the thread/process.This might be used to DoS libcurl-using application.

POC

Reference

No PoCs from references.

Github

• https://github.com/RedHatProductSecurity/aegis-ai
• https://github.com/fkie-cad/nvd-json-data-feeds