Siemens SIMATIC Net CP 1243-8 Irc Firmware vulnerabilities

4 CVEs affecting Siemens SIMATIC Net CP 1243-8 Irc Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2021-41991, published 2021-10-18.

Highest priority

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-2018-5391, published 2018-09-06. High severity, CVSS 7.5. EPSS: 32.4% chance of exploitation in the next 30 days. The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service…
CVE-2021-41991, published 2021-10-18. High severity, CVSS 7.5. EPSS: 5.3% chance of exploitation in the next 30 days. The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later trigger the replacement…
CVE-2020-27827, published 2021-03-18. High severity, CVSS 7.5. EPSS: 3.2% chance of exploitation in the next 30 days. A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of…