CVE-2026-25819

HIGH EPSS 38.0%
Published Mar 13, 20263mo ago · Modified Apr 27, 20262mo ago
7.5 CVSS 3.1
High
Find Similar
Published Mar 13, 2026 3mo ago
Last Modified Apr 27, 2026 2mo ago

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
38.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-400 Uncontrolled Resource Consumption Resource Mgmt

References 2

  • hmsnetworks.blob.core.windows.net https://hmsnetworks.blob.core.windows.net/nlw/docs/default-source/products/cybersecurity/security-advisory/hms-security-advisory-2026-03-09-001---ewon-several-flexy-and-cosy--vulnerabilities.pdf?sfvrsn=f7c027b8_13
  • hms-networks.com https://www.hms-networks.com/p/flexy20500-00ma-ewon-flexy-205

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.