CVE-2026-25823
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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 | n/a |
| Product | n/a |
| Published | Mar 12, 2026 |
| Last Updated | Mar 13, 2026 |
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Affected Versions
n/a / n/a
n/a
References
hms-networks.com: https://www.hms-networks.com/p/flexy20500-00ma-ewon-flexy-205 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