CVE-2025-15620
A critical denial‑of‑service flaw exists in the web interface of HiOS Switch Platform devices. A remote attacker can trigger an uncontrolled reboot by sending a specially crafted HTTP GET request to a specific endpoint, causing the switch to become unavailable.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
Belden HiOS Switch Platform versions 09.1.00 through 09.4.04 and 10.0.00 through 10.3.00.
Real-world impact
An attacker can force the switch to reboot, disrupting network connectivity and causing downtime for any services that rely on the device.
Why this severity
The CVSS score of 9.2 reflects the high impact on availability (the device becomes unusable) combined with remote attackability, no authentication, and no user interaction required.
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources
Timeline
- Apr 2, 2026 · Apr 2, 2026PublishedDisclosed and added to the National Vulnerability Database.
- Jul 24, 2026 · 11d agoAdvisory updatedThe NVD record was last revised.
How it’s attacked
References & advisories
- assets.belden.com/m/702a656e81736b04/original…vendor advisory
- vulncheck.com/advisories/hios-switch-plat…third party advisory