CVE-2025-15620 HiOS Switch Platform Denial-of-Service via Web Interface
Remote attackers can cause a denial of service by sending malicious HTTP requests to reboot the network switch, disrupting network availability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-15620?
CVE-2025-15620 is a critical denial of service vulnerability in Belden Hirschmann HiOS Switch Platform, published on 2 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-306
Which versions are affected by CVE-2025-15620?
It affects 1 product.
Products include Belden Hios Switch.
How do I fix CVE-2025-15620?
No fix has been published for CVE-2025-15620 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-15620 being exploited?
There is no known exploitation of CVE-2025-15620 in the wild and no public exploit code.
Sources
Also known as GHSA-f68c-94vp-f2q5.