CVE-2013-2791: MatrikonOPC SCADA DNP3 OPC Server 1.2.0 allows remote attackers to cause a denial of service (master-station d

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HIGH 7.1DOWNGRADE

CVE-2013-2791 is a high-severity flaw (CVSS 7.1) affecting scada dnp3 opc server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

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-119
Published	2013-09-09
Last modified	2026-06-16

Publisher (CNA): ICS-CERT · Vendor: matrikonopc

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-09-09 11:39 UTCPublished CVE record published
2026-06-16 23:53 UTCUpdated Record last modified

matrikonopc scada dnp3 opc server DOWNGRADE

Affected: 1.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.0

1. Check installed version

apt-cache policy scada-dnp3-opc-server || rpm -q scada-dnp3-opc-server || scada-dnp3-opc-server --version

2. No fixed release: DOWNGRADE to a release before 1.2.0 (Debian / Ubuntu)

apt-cache madison scada-dnp3-opc-server sudo apt install scada-dnp3-opc-server=<VERSION_BEFORE_1.2.0> sudo apt-mark hold scada-dnp3-opc-server

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list scada-dnp3-opc-server sudo dnf downgrade scada-dnp3-opc-server-<VERSION_BEFORE_1.2.0> sudo dnf versionlock add scada-dnp3-opc-server

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2013-2791?

scada dnp3 opc server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2013-2791 being exploited?

CVE-2013-2791 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-2013-2791 affect?

CVE-2013-2791 affects scada dnp3 opc server. Severity is high (CVSS 7.1). 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.

How urgent is CVE-2013-2791?

Priority 42/100. High severity

Related CVEs

CVE-2013-2829 HIGH 7.1 UPGRADE MatrikonOPC SCADA DNP3 OPC Server 1.2.2.0 and earlier allows remote attackers to cause a denial of service (in

References

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