Siemens SIMATIC s7-300 Firmware vulnerabilities

6 CVEs affecting Siemens SIMATIC s7-300 Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2019-6568, published 2019-04-17.

Highest priority

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

CVE-2017-12741, published 2017-12-26. High severity, CVSS 7.5. EPSS: 3.3% chance of exploitation in the next 30 days. Specially crafted packets sent to port 161/udp could cause a denial of service condition. The affected devices must be restarted manually.
CVE-2019-6568, published 2019-04-17. High severity, CVSS 7.5. EPSS: 1.4% chance of exploitation in the next 30 days. The webserver of the affected devices contains a vulnerability that may lead to a denial of service condition. An attacker may cause a denial of service situation which leads to a restart of the…
CVE-2018-16561, published 2019-04-17. High severity, CVSS 7.5. EPSS: 1.4% chance of exploitation in the next 30 days. A vulnerability has been identified in SIMATIC S7-300 CPUs (All versions < V3.X.16). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of…
CVE-2017-2680, published 2017-05-11. Medium severity, CVSS 6.5. EPSS: 1.1% chance of exploitation in the next 30 days. Specially crafted PROFINET DCP broadcast packets could cause a denial of service condition of affected products on a local Ethernet segment (Layer 2). Human interaction is required to recover the…
CVE-2017-2681, published 2017-05-11. Medium severity, CVSS 6.5. EPSS: 0.9% chance of exploitation in the next 30 days. Specially crafted PROFINET DCP packets sent on a local Ethernet segment (Layer 2) to an affected product could cause a denial of service condition of that product. Human interaction is required to…
CVE-2018-4843, published 2018-03-20. Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days. A vulnerability has been identified in SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416-3 PN/DP V7 (All…