CVE-2025-15620: HiOS Switch Platform Denial-of-Service via Web Interface

Severity: high (CVSS 8.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-02 · updated 2026-10-29
Weakness: CWE-306

Description

HiOS Switch Platform versions 09.1.00 through 09.4.04 and 10.0.00 through 10.3.00 contain a denial-of-service vulnerability in the web interface that allows remote attackers to reboot the affected device by sending a malicious HTTP GET request to a specific endpoint. Attackers can trigger an uncontrolled reboot condition through crafted HTTP requests to cause service disruption and unavailability of the switch.

Affected products

Belden Hirschmann HiOS Switch Platform: from 09.1.00 before 09.4.05; from 10.0.00 before 10.3.01 — fixed in 09.4.05, 10.3.01
Belden Hirschmann HiOS Switch Platform: from 09.1.00 before 09.4.05; from 10.0.00 before 10.3.01 — fixed in 09.4.05, 10.3.01

How to fix

Upgrade to a fixed version: Belden Hirschmann HiOS Switch Platform 09.4.05, 10.3.01; Belden Hirschmann HiOS Switch Platform 09.4.05, 10.3.01. Check the vendor advisory for mitigations.

References

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