MatrikonOPC SCADA DNP3 OPC Server 1.2.0 allows remote attackers to cause a denial of service (master-station daemon crash) via a malformed DNP3 TCP packet from the IP address of an outstation.
Conclusion & alert: CVE-2013-2791 is rated Moderate Risk (52.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.26%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.47% | 1.26% | +0.78% |
| 2 | 2025-03-30 | 0.35% | 0.47% | +0.12% |
| 3 | 2025-03-29 | — | 0.35% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.1 | 2.0 | HIGH |
|
8.6 | 6.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| matrikonopc | scada_dnp3_opc_server | 1.2.0 | cpe:2.3:a:matrikonopc:scada_dnp3_opc_server:1.2.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://ics-cert.us-cert.gov/advisories/ICSA-13-213-04A | US Government Resource |
| http://www.opcsupport.com/ics/support/KBAnswer.asp?questionID=2890 |