Denial of Service Vulnerability in Hirschmann HiOS Switch Platform Devices

CVE-2026-89025

What is CVE-2026-89025?

The Hirschmann HiOS Switch Platform devices are susceptible to a denial-of-service issue stemming from inadequate validation of HTTP(S) content within their integrated web server. A remote, unauthenticated attacker can exploit this flaw by sending a specifically crafted HTTP(S) request to a designated endpoint, leading to improper processing that may trigger unintended reboots of the affected device. This results in a temporary denial-of-service state, impacting network availability.

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