Siemens SIMATIC s7-1500 CPU 1514sp-2 Pn Firmware vulnerabilities

2 CVEs affecting Siemens SIMATIC s7-1500 CPU 1514sp-2 Pn Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2023-46156, published 2023-12-12.

Highest priority

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

CVE-2023-46156, published 2023-12-12. High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days. Affected devices improperly handle specially crafted packets sent to port 102/tcp. This could allow an attacker to create a denial of service condition. A restart is needed to restore normal…
CVE-2023-28831, published 2023-09-12. High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days. The OPC UA implementations (ANSI C and C++) in affected products contain an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate…