Answer in brief
CVE-2026-33387 records a Medium severity (CVSS 5.1) vulnerability in Insufficient sanitization of Dashboards in Guardian/CMC before 26.3.0. The current sources do not mark it as known exploited. The current feed maps Nozomi Networks/CMC (generic), Nozomi Networks/Guardian (generic), Siemens/RUGGEDCOM APE1808 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Nozomi Networks/CMC (generic), Nozomi Networks/Guardian (generic), Siemens/RUGGEDCOM APE1808 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Nozomi Networks/CMCgeneric | >=0 <26.3.0 | 26.3.0 |
| Nozomi Networks/Guardiangeneric | >=0 <26.3.0 | 26.3.0 |
| Siemens/RUGGEDCOM APE1808generic | >=0 <* | * |
Published upstream
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 8, 2026
A template injection vulnerability was discovered in the Dashboards functionality due to improper validation of an input parameter. An authenticated user with the required privileges can define a dashboard containing a malicious payload, or a victim can be socially engineered into importing a malicious dashboard. When the victim views or imports the dashboard, the payload executes in their browser context, allowing the attacker to modify application data or disrupt application availability.
Quoted source text, attributed separately from HOL analysis.