How severe is CVE-2016-5874?

CVE-2016-5874 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-5874 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-5874?

CVE-2016-5874 affects Siemens Simatic Net Pc-software. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-5874?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-5874 published?

CVE-2016-5874 was published on 2016-07-22 and last updated on 2026-06-17.

CVE-2016-5874

CVE-2016-5874 is a high-severity vulnerability in Siemens Simatic Net Pc-software with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Siemens Simatic Net Pc-software
Published: 2016-07-22
Last modified: 2026-06-17

Description

Siemens SIMATIC NET PC-Software before 13 SP2 allows remote attackers to cause a denial of service (OPC UA service outage) via crafted TCP packets.

Frequently asked questions

What is CVE-2016-5874?: Siemens SIMATIC NET PC-Software before 13 SP2 allows remote attackers to cause a denial of service (OPC UA service outage) via crafted TCP packets.
How severe is CVE-2016-5874?: CVE-2016-5874 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-5874 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-5874?: CVE-2016-5874 affects Siemens Simatic Net Pc-software. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-5874?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-5874 published?: CVE-2016-5874 was published on 2016-07-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:siemens:simatic_net_pc-software:*:sp1:*:*:*:*:*:*

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