Siemens Simatic S7-400H V6 Firmware vulnerabilities

CVE-2021-40368 [HIGH] CWE-119 CVE-2021-40368: A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-4 A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414-2 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIMATIC

CVE-2019-10936 [HIGH] CWE-400 CVE-2019-10936: Affected devices improperly handle large amounts of specially crafted UDP packets. This could all Affected devices improperly handle large amounts of specially crafted UDP packets. This could allow an unauthenticated remote attacker to trigger a denial of service condition.

CVE-2017-12741 [HIGH] CWE-400 CVE-2017-12741: Specially crafted packets sent to port 161/udp could cause a denial of service condition. The affect Specially crafted packets sent to port 161/udp could cause a denial of service condition. The affected devices must be restarted manually.