CVE-2026-25823

Critical CVSS: 9.8

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 a stack buffer overflow that leads to a Denial of Service, which can also be exploited to achieve Unauthenticated Remote Code Execution.

Vendor

Product

CWE

CWE-121

Yayın Tarihi

2026-03-13 19:54:27

Güncelleme

2026-03-16 14:54:11

Source Identifier

cve@mitre.org

KEV Date Added

Kategoriler

CWE-121 CRITICAL 2026

Referanslar

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 https://www.hms-networks.com/p/flexy20500-00ma-ewon-flexy-205