CVE-2015-5374
A vulnerability has been identified in Firmware variant PROFINET IO for EN100 Ethernet module :...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2015-5374- CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-19
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2015-5374- Updated
- 2026-11-02
EUVDEUVD-2015-5330 No score
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.
- Record
EUVD-2015-5330- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-26f6-7cv9-7mh6 No score
A vulnerability has been identified in Firmware variant PROFINET IO for EN100 Ethernet module :...
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.
- Record
GHSA-26f6-7cv9-7mh6- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Siemens SIPROTEC 4 and SIPROTEC Compact EN100 Ethernet Module < 4.25 - Denial of Service | 2018-02-16 |
| Metasploit | Siemens SIPROTEC 4 and SIPROTEC Compact EN100 Ethernet Module - Denial of Service | |
| PoC in GitHub | can/CVE-2015-5374-DoS-PoC | 2018-02-14 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, Metasploit, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2015-5374 is a high vulnerability (CVSS 7.8) in Siemens Siprotec Firmware, published July 18, 2015. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 74.5%, the 99th percentile. No source names a fixed version.
References
siemens.com/cert/pool/cert/siemens_security_advisory_SSA-323211.pdf
exploit-db.com/exploits/44103
ics-cert.us-cert.gov/advisories/ICSA-15-202-01
securityfocus.com/bid/75948
nvd.nist.gov/vuln/detail/CVE-2015-5374
github.com/advisories/GHSA-26f6-7cv9-7mh6