What’s Vulnerable › Vulnerabilities

CVE-2025-40897: Incorrect authorization for Threat Intelligence in Guardian/CMC before 26.0.0

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-15 · updated 2026-10-14
• Weakness: CWE-863

Description

An access control vulnerability was discovered in the Threat Intelligence functionality due to a specific access restriction not being properly enforced for users with view-only privileges. An authenticated user with view-only privileges for the Threat Intelligence functionality can perform administrative actions on it, altering the rules configuration, and/or affecting their availability.

Affected products

• Nozomi Networks CMC: before 26.0.0 — fixed in 26.0.0
• Nozomi Networks Guardian: before 26.0.0 — fixed in 26.0.0

How to fix

Upgrade to a fixed version: Nozomi Networks CMC 26.0.0; Nozomi Networks Guardian 26.0.0. Check the vendor advisory for mitigations.

References

• https://security.nozominetworks.com/NN-2026:1-01
• https://cert-portal.siemens.com/productcert/html/ssa-827968.html

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