Siemens Siplus s7-300 CPU 314 Firmware vulnerabilities

4 CVEs affecting Siemens Siplus s7-300 CPU 314 Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2021-44695, published 2022-12-13.

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

• CVE-2019-13940, published 2020-02-11. High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days. A vulnerability has been identified in SIMATIC ET 200pro IM154-8 PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200pro IM154-8F PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200pro IM154-8FX PN/DP…
• CVE-2021-40365, published 2022-12-13. High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days. Affected devices don't process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device.
• CVE-2021-44695, published 2022-12-13. Medium severity, CVSS 4.9. EPSS: 0.8% chance of exploitation in the next 30 days. Affected devices don't process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device.
• CVE-2021-44693, published 2022-12-13. Medium severity, CVSS 4.9. EPSS: 0.8% chance of exploitation in the next 30 days. Affected devices don't process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device.