CVE-2025-40892
CVE-2025-40892 is a high-severity vulnerability in Nozominetworks Cmc with a CVSS 3.x base score of 8.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: High (CVSS 3.x base score 8.9)
- CVSS v4: 7.1
- EPSS exploit prediction: 0% (11th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-204260
- Weakness: CWE-79
- Affected product: Nozominetworks Cmc
- Published:
- Last modified:
Description
A Stored Cross-Site Scripting vulnerability was discovered in the Reports functionality due to improper validation of an input parameter. An authenticated user with report privileges can define a malicious report containing a JavaScript payload, or a victim can be socially engineered to import a malicious report template. When the victim views or imports the report, the XSS executes in their browser context, allowing the attacker to perform unauthorized actions as the victim, such as modify application data, disrupt application availability, and access limited sensitive information.
Frequently asked questions
- What is CVE-2025-40892?
- A Stored Cross-Site Scripting vulnerability was discovered in the Reports functionality due to improper validation of an input parameter. An authenticated user with report privileges can define a malicious report containing a JavaScript payload, or a victim can be socially engineered to import a malicious report template. When the victim views or imports the report, the XSS executes in their browser context, allowing the attacker to perform unauthorized actions as the victim, such as modify application data, disrupt application availability, and access limited sensitive information.
- How severe is CVE-2025-40892?
- CVE-2025-40892 has a CVSS 3.x base score of 8.9, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity high, and availability high.
- Is CVE-2025-40892 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-40892?
- CVE-2025-40892 primarily affects Nozominetworks Cmc. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-40892?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-40892 have an EU (EUVD) identifier?
- Yes. CVE-2025-40892 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204260.
- When was CVE-2025-40892 published?
- CVE-2025-40892 was published on 2025-12-18 and last updated on 2026-06-17.
References
- https://security.nozominetworks.com/NN-2025:13-01
- https://cert-portal.siemens.com/productcert/html/ssa-827968.html
Affected products (2)
- cpe:2.3:a:nozominetworks:cmc:*:*:*:*:*:*:*:*
- cpe:2.3:a:nozominetworks:guardian:*:*:*:*:*:*:*:*
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