CVE-2025-40900: Nozomi Networks Guardian and CMC Angular template injection in Reports

CVE-2025-40900 · Severity: medium · CVSS 4.6 · Published 2026-05-19

A vulnerability in the reporting feature of Nozomi Networks Guardian and CMC appliances could allow an authorized user to execute malicious code in another user's browser. By creating or tricking a user into importing a specially crafted report template, an attacker can modify application data or disrupt the availability of the management interface. While existing security controls prevent full data theft, the flaw can still be used to interfere with normal operations.

Technologies: Nozomi Networks Central Management Console, Nozomi Networks Guardian. Vendors: Nozomi Networks.

Quick answers

Is CVE-2025-40900 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-40900 being exploited in the wild.
How severe is CVE-2025-40900?
Medium severity, with a CVSS score of 4.6, published 19 May 2026.
Which products and versions are affected?
Nozomi Networks Central Management Console < 26.1.0; Nozomi Networks Guardian < 26.1.0.
Is there a fix for CVE-2025-40900?
A patch was published on 2026-05-19: Fixed in version 26.1.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2025-40900 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2025-40900?
Check whether you run Nozomi Networks Central Management Console or Nozomi Networks Guardian at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An Angular template injection vulnerability (CWE-1336) exists in the Reports functionality of Nozomi Networks Guardian and CMC due to improper validation of input parameters. An authenticated attacker with report privileges can define a malicious report containing an Angular template payload, or socially engineer a victim into importing a malicious template. When the victim views or imports the report, the template executes in their browser context. While Content Security Policy (CSP) and existing input validation prevent full Cross-Site Scripting (XSS) and direct information disclosure, an attacker can still modify application data or disrupt availability. The issue is fixed in version 26.1.0.

Affected products

  • Nozomi Networks Guardian < 26.1.0
  • Nozomi Networks CMC < 26.1.0

Timeline

  • 2026-05-19: disclosed
  • 2026-05-19: patched: Fixed in version 26.1.0
  • 2026-05-19: advisory

References

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