Executive Summary

CVE-2023-5685 exposes a flaw in XNIO’s NotifierState handling: when the notifier chain grows excessively, a stack overflow occurs, causing uncontrolled resource consumption and a potential denial‑of‑service attack. The vulnerability is not yet listed in CISA KEV.

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Authoritative CVE Metadata - CVSS Base Score: 7.5 (HIGH) - Published: 2024-03-22T19:15:07.983 - Last Modified: 2026-09-14T20:16:36.733

Original Description: A flaw was found in XNIO. The XNIO NotifierState that can cause a Stack Overflow Exception when the chain of notifier states becomes problematically large can lead to uncontrolled resource management and a possible denial of service (DoS).

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