Is CVE-2026-25819 actively exploited?

No active exploitation of CVE-2026-25819 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-25819 be exploited remotely?

Yes. CVE-2026-25819 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-25819?

CVE-2026-25819 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2026-25819

HIGH

CVE-2026-25819

CWE-400Published: March 13, 2026· Updated: Mar 16, 2026

7.5

CVSS v3.1

EPSS:0.22%probability of exploitation in 30 daysPercentile:43.9th

Official 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.

NVD Source

Technical Analysis

CVE-2026-25819 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.