The Kepware DNP Master Driver for the KEPServerEX Communications Platform before 5.12.140.0 allows remote attackers to cause a denial of service (master-station infinite loop) via crafted DNP3 packets to TCP port 20000 and allows physically proximate attackers to cause a denial of service (master-station infinite loop) via crafted input over a serial line.
Conclusion & alert: CVE-2013-2789 is rated Moderate Risk (52.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.46%). 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 | 2025-03-30 | 0.34% | 0.46% | +0.12% |
| 2 | 2025-03-29 | 0.46% | 0.34% | -0.12% |
| 3 | 2025-03-17 | — | 0.46% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 2.0 | HIGH |
|
10.0 | 6.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| kepware | kepserverex | < 5.12.140.0 | cpe:2.3:a:kepware:kepserverex:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://ics-cert.us-cert.gov/advisories/ICSA-13-226-01 | Third Party Advisory US Government Resource |