CVE-2026-25817Network attack vector

Authenticated code execution via OS command injection

Published Mar 12, 2026 · Updated Mar 12, 2026

OS command injection in HMS Networks Ewon Flexy and Cosy+ firmware allows remote authenticated users to execute code on the gateway. Published materials state that special elements reach an operating-system command without proper neutralization, but do not identify the command handler or input field. Low-privilege gateway credentials and network access are required; successful exploitation grants arbitrary command execution on the gateway.

CVSS severity8.8
High
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in HMS Networks Ewon Flexy and Cosy+ firmware allows remote authenticated users to execute code on the gateway. Published materials state that special elements reach an operating-system command without proper neutralization, but do not identify the command handler or input field. Low-privilege gateway credentials and network access are required; successful exploitation grants arbitrary command execution on the gateway.

The record

CVE
CVE-2026-25817
Published
Mar 12, 2026
Updated
Mar 12, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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