Siemens SIMATIC Process Historian Opc Ua Server Firmware vulnerabilities

2 CVEs affecting Siemens SIMATIC Process Historian Opc Ua Server Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2021-40142, published 2021-08-27.

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

• CVE-2021-3449, published 2021-03-25. Medium severity, CVSS 5.9. EPSS: 63.5% chance of exploitation in the next 30 days. An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where…
• CVE-2021-40142, published 2021-08-27. High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days. In OPC Foundation Local Discovery Server (LDS) before 1.04.402.463, remote attackers can cause a denial of service (DoS) by sending carefully crafted messages that lead to Access of a Memory Location…