CVE-2025-15620

Name: CVE-2025-15620
Creator: NVD / NIST
Published: 2026-04-02T21:16:40.137+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.2/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2025-15620 is a critical-severity vulnerability rated 9.2/10 on the CVSS scale. 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.. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.6/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CVSS 4.0

9.2/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.51%

39.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Belden	Hios Switch	>= 09.1.00, < 09.4.05
Belden	Hios Switch	>= 10.0.00, < 10.3.01

References

https://assets.belden.com/m/702a656e81736b04/original/PSIRT-2_Web_Interface_HiOS.pdfVendor Advisory
https://www.vulncheck.com/advisories/hios-switch-platform-denial-of-service-via-web-interfaceThird Party Advisory

Timeline

Published: Apr 2, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-15620?

How severe is CVE-2025-15620?

CVE-2025-15620 has a CVSS score of 9.2/10 (CRITICAL severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2025-15620?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-15620?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST