CVE-2026-25819

Name: CVE-2026-25819
Creator: NVD / NIST
Published: 2026-03-13T19:54:27.627+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.48%

Last modified Jun 17, 2026

CVE-2026-25819 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. HMS Networks Ewon Flexy with firmware before 15.0s4, Cosy+ with firmware 22.xx before 22.1s6, and Cosy+ with firmware 23.xx before 23.0s3 allows unauthenticated attackers to cause a Denial of Service by using a specially crafted HTTP request that leads to a reboot of the device, provided they have access to the device's GUI.. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

HMS Networks Ewon Flexy with firmware before 15.0s4, Cosy+ with firmware 22.xx before 22.1s6, and Cosy+ with firmware 23.xx before 23.0s3 allows unauthenticated attackers to cause a Denial of Service by using a specially crafted HTTP request that leads to a reboot of the device, provided they have access to the device's GUI.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.48%

38.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

References

Timeline

Published: Mar 13, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-25819?

How severe is CVE-2026-25819?

CVE-2026-25819 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.

How do I fix CVE-2026-25819?

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-2026-25819?

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

Scan your code now

Source: NVD / NIST