High severity · published Apr 2, 2026
CVE-2025-15620
HiOS Switch Platform Denial-of-Service via Web Interface
8.6
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HH
Hirschmann HiOS Switch Platform · Belden
09.1.00 through 09.4.05; 10.0.00 through 10.3.01 · source: vendor
HS
Hios Switch · Belden
09.1.00 before 09.4.05; 10.0.00 before 10.3.01 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-15620
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-15620
Vendor Advisory
https://assets.belden.com/m/702a656e81736b04/original/PSIRT-2_Web_Interface_HiOS.pdf
Third Party Advisory
https://www.vulncheck.com/advisories/hios-switch-platform-denial-of-service-via-web-interface
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Hirschmann HiOS Switch Platform DoS via Malformed HTTP Request