Siemens SIMATIC s7-300 CPU Firmware vulnerabilities

8 CVEs affecting Siemens SIMATIC s7-300 CPU Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2022-25622, published 2022-04-12.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2015-2177, published 2015-03-07. High severity, CVSS 7.5. EPSS: 33.8% chance of exploitation in the next 30 days. Siemens SIMATIC S7-300 CPU devices allow remote attackers to cause a denial of service (defect-mode transition) via crafted packets on (1) TCP port 102 or (2) Profibus.
CVE-2016-9158, published 2016-12-17. High severity, CVSS 7.5. EPSS: 3% chance of exploitation in the next 30 days. A vulnerability has been identified in SIMATIC S7-300 CPU family (All versions), SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 PN/DP V6 and…
CVE-2019-10936, published 2019-10-10. High severity, CVSS 7.5. EPSS: 2.1% chance of exploitation in the next 30 days. Affected devices improperly handle large amounts of specially crafted UDP packets. This could allow an unauthenticated remote attacker to trigger a denial of service condition.
CVE-2019-19300, published 2020-04-14. High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days. A vulnerability has been identified in Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200, Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200P, KTK ATE530S, SIDOOR ATD430W, SIDOOR…
CVE-2019-18336, published 2020-03-10. High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days. A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V3.X.17), SIMATIC TDC CP51M1 (All versions < V1.1.8), SIMATIC TDC…
CVE-2016-9159, published 2016-12-17. Medium severity, CVSS 5.9. EPSS: 1.5% chance of exploitation in the next 30 days. A vulnerability has been identified in SIMATIC S7-300 CPU family (All versions), SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 PN/DP V6 and…
CVE-2019-10923, published 2019-10-10. High severity, CVSS 7.5. EPSS: 1.4% chance of exploitation in the next 30 days. An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time synchronization (IRT) of the affected installation.
CVE-2022-25622, published 2022-04-12. High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days. The PROFINET (PNIO) stack, when integrated with the Interniche IP stack, improperly handles internal resources for TCP segments where the minimum TCP-Header length is less than defined. This could…