How severe is CVE-2015-5374?

CVE-2015-5374 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2015-5374 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 74% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-5374?

CVE-2015-5374 affects Siemens Siprotec Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-5374?

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-2015-5374 published?

CVE-2015-5374 was published on 2015-07-18 and last updated on 2026-06-17.

CVE-2015-5374

CVE-2015-5374 is a high-severity vulnerability in Siemens Siprotec Firmware with a CVSS 2.0 base score of 7.8. Its EPSS exploit-prediction score of 74% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-19.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 74% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-19
Affected product: Siemens Siprotec Firmware
Published: 2015-07-18
Last modified: 2026-06-17

Description

A vulnerability has been identified in Firmware variant PROFINET IO for EN100 Ethernet module : All versions < V1.04.01; Firmware variant Modbus TCP for EN100 Ethernet module : All versions < V1.11.00; Firmware variant DNP3 TCP for EN100 Ethernet module : All versions < V1.03; Firmware variant IEC 104 for EN100 Ethernet module : All versions < V1.21; EN100 Ethernet module included in SIPROTEC Merging Unit 6MU80 : All versions < 1.02.02. Specially crafted packets sent to port 50000/UDP could cause a denial-of-service of the affected device. A manual reboot may be required to recover the service of the device.

Frequently asked questions

What is CVE-2015-5374?: A vulnerability has been identified in Firmware variant PROFINET IO for EN100 Ethernet module : All versions < V1.04.01; Firmware variant Modbus TCP for EN100 Ethernet module : All versions < V1.11.00; Firmware variant DNP3 TCP for EN100 Ethernet module : All versions < V1.03; Firmware variant IEC 104 for EN100 Ethernet module : All versions < V1.21; EN100 Ethernet module included in SIPROTEC Merging Unit 6MU80 : All versions < 1.02.02. Specially crafted packets sent to port 50000/UDP could cause a denial-of-service of the affected device. A manual reboot may be required to recover the service of the device.
How severe is CVE-2015-5374?: CVE-2015-5374 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2015-5374 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 74% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-5374?: CVE-2015-5374 affects Siemens Siprotec Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-5374?: 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-2015-5374 published?: CVE-2015-5374 was published on 2015-07-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:siemens:siprotec_firmware:4.24:*:*:*:*:*:*:*

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