Is CVE-2026-25817 actively exploited?

No active exploitation of CVE-2026-25817 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-25817 be exploited remotely?

Yes. CVE-2026-25817 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-25817?

CVE-2026-25817 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2026-25817

HIGH

CVE-2026-25817

CWE-94Published: March 13, 2026· Updated: Mar 16, 2026

8.8

CVSS v3.1

EPSS:0.26%probability of exploitation in 30 daysPercentile:49.1th

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 have improper neutralization of special elements used in an OS command allowing remote code execution by attackers with low privilege access on the gateway, provided the attacker has credentials.

NVD Source

Technical Analysis

CVE-2026-25817 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.