CVE-2014-5074
CVE-2014-5074 is a high-severity vulnerability in Siemens Simatic S7-1500 Cpu Firmware with a CVSS 2.0 base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 2.0 base score 7.1)
- EPSS exploit prediction: 10% (95th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Siemens Simatic S7-1500 Cpu Firmware
- Published:
- Last modified:
Description
Siemens SIMATIC S7-1500 CPU devices with firmware before 1.6 allow remote attackers to cause a denial of service (device restart and STOP transition) via crafted TCP packets.
Frequently asked questions
- What is CVE-2014-5074?
- Siemens SIMATIC S7-1500 CPU devices with firmware before 1.6 allow remote attackers to cause a denial of service (device restart and STOP transition) via crafted TCP packets.
- How severe is CVE-2014-5074?
- CVE-2014-5074 has a CVSS 2.0 base score of 7.1, rated high severity.
- Is CVE-2014-5074 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2014-5074?
- CVE-2014-5074 primarily affects Siemens Simatic S7-1500 Cpu Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2014-5074?
- 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-2014-5074 published?
- CVE-2014-5074 was published on 2014-08-17 and last updated on 2026-06-17.
References
- http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-310688.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-310688.pdf
- https://ics-cert.us-cert.gov/advisories/ICSA-14-226-01
- https://www.exploit-db.com/exploits/44693/
Affected products (13)
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.1.2:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.5:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-1511-1_pn_cpu:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-1513-1_pn_cpu:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-1515-2_pn_cpu:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-1516-3_pn\/dp_cpu:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-1516f-3_pn\/dp_cpu:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-1518-4_pn\/dp_cpu:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-1518f-4_pn\/dp_cpu:-:*:*:*:*:*:*:*
More vulnerabilities in Siemens Simatic S7-1500 Cpu Firmware
- CVE-2014-2251 — High (CVSS 8.3): The random-number generator on Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 does not have…
- CVE-2014-2259 — High (CVSS 7.8): Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 allow remote attackers to cause a denial of service…
- CVE-2014-2257 — High (CVSS 7.8): Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 allow remote attackers to cause a denial of service…
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- CVE-2019-10936 — High (CVSS 7.5): Affected devices improperly handle large amounts of specially crafted UDP packets. This could allow an…
- CVE-2016-2200 — High (CVSS 7.5): Siemens SIMATIC S7-1500 CPU devices before 1.8.3 allow remote attackers to cause a denial of service (STOP mode…