What is CVE-2025-40904?

CVE-2025-40904 is a medium-severity vulnerability in Nozomi Networks Cmc, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2026-05-19.

How severe is CVE-2025-40904?

Medium severity. CVSS v3 base score is 6.5 out of 10.

XSS in Nozomi Networks Cmc

CVE-2025-40904

A Stored HTML Injection vulnerability was discovered in the Smart Polling functionality due to improper validation of an input parameter. An authenticated user with limited privileges can push malicious remote strategies containing HTML ta…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (9.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.

Affected products

Nozomi Networks Cmc — versions 0
Nozomi Networks Guardian — versions 0
Nozominetworks Cmc
Nozominetworks Guardian

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

prodsec@nozominetworks.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-40904?: CVE-2025-40904 is a medium-severity vulnerability in Nozomi Networks Cmc, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2026-05-19.
How severe is CVE-2025-40904?: Medium severity. CVSS v3 base score is 6.5 out of 10.