Denial-of-Service Flaw in HiOS Switch Platform by Belden
CVE-2025-15620

9.2CRITICAL

Key Information:

Vendor

Belden

Status
Hirschmann HiOS Switch Platform
Vendor
CVE Published:
2 April 2026

What is CVE-2025-15620?

The HiOS Switch Platform by Belden is susceptible to a denial-of-service issue via its web interface. Attackers can execute a remote reboot of the switch by sending specifically crafted HTTP GET requests to a particular endpoint. This can lead to unauthorized disruptions, causing the device to become unavailable and affecting network operations.

Affected Version(s)

Hirschmann HiOS Switch Platform 09.1.00 <= 09.4.05

Hirschmann HiOS Switch Platform 10.0.00 <= 10.3.01

References

https://assets.belden.com/m/702a656e81736b04/original/PSI...
vendor-advisory
https://www.vulncheck.com/advisories/hios-switch-platform...
third-party-advisory

CVSS V4

Score:
9.2
Severity:
CRITICAL
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.