PatchTheCVECVE-2013-2821: NovaTech Orion Substation Automation Platform OrionLX DNP Master 1.27.38 and DNP Slave 1.23.10 and earlier and
CVE-2013-2821 is a high-severity flaw (CVSS 7.1) affecting orion5 dnp master, orion5 dnp slave, orion5r dnp master. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
NovaTech Orion Substation Automation Platform OrionLX DNP Master 1.27.38 and DNP Slave 1.23.10 and earlier and Orion5/Orion5r DNP Master 1.27.38 and DNP Slave 1.23.10 and earlier allow remote attackers to cause a denial of service (driver crash and process restart) via a crafted DNP3 TCP packet.
Why this priority
- High severity
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 7.1 (High) |
| EPSS exploit chance | 1.3% (top 30%) |
| CISA exploited list | No |
| Weakness | CWE-20 |
| Published | 2013-12-21 |
| Last modified | 2026-06-16 |
Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2013-2821?
orion5 dnp master: mitigate or apply the listed mitigation; orion5 dnp slave: mitigate or apply the listed mitigation; orion5r dnp master: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2013-2821 being exploited?
CVE-2013-2821 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2013-2821 affect?
CVE-2013-2821 affects orion5 dnp master, orion5 dnp slave, orion5r dnp master. Severity is high (CVSS 7.1). NovaTech Orion Substation Automation Platform OrionLX DNP Master 1.27.38 and DNP Slave 1.23.10 and earlier and Orion5/Orion5r DNP Master 1.27.38 and DNP Slave 1.23.10 and earlier allow remote attackers to cause a denial of service (driver c
How urgent is CVE-2013-2821?
Priority 42/100. High severity
Related CVEs
- CVE-2013-2822 MEDIUM 4.7 MITIGATE MITIGATE NovaTech Orion Substation Automation Platform OrionLX DNP Master 1.27.38 and DNP Slave 1.23.10 and earlier and