Siemens Sinumerik 840D Sl vulnerabilities

CVE-2025-40820 [HIGH] CWE-940 CVE-2025-40820: Affected products do not properly enforce TCP sequence number validation in specific scenarios but a Affected products do not properly enforce TCP sequence number validation in specific scenarios but accept values within a broad range. This could allow an unauthenticated remote attacker e.g. to interfere with connection setup, potentially leading to a denial of service. The attack succeeds only if an attacker can inject IP packets with spoofed addres

CVE-2025-40743 [HIGH] CWE-288 CVE-2025-40743: A vulnerability has been identified in SINUMERIK 828D PPU.4 (All versions < V4.95 SP5), SINUMERIK 82 A vulnerability has been identified in SINUMERIK 828D PPU.4 (All versions < V4.95 SP5), SINUMERIK 828D PPU.5 (All versions < V5.25 SP1), SINUMERIK 840D sl (All versions < V4.95 SP5), SINUMERIK MC (All versions < V1.25 SP1), SINUMERIK MC V1.15 (All versions < V1.15 SP5), SINUMERIK ONE (All versions < V6.25 SP1), SINUMERIK ONE V6.15 (All versions < V6.1

CVE-2024-23814 [MEDIUM] CWE-400 CVE-2024-23814: The integrated ICMP service of the network stack of affected devices can be forced to exhaust its a The integrated ICMP service of the network stack of affected devices can be forced to exhaust its available memory resources when receiving specially crafted messages targeting IP fragment re-assembly. This could allow an unauthenticated remote attacker to cause a temporary denial of service condition of the ICMP service, other communication service

CVE-2020-15783 [HIGH] CWE-400 CVE-2020-15783: A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLU A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC TDC CPU555 (All versions), SINUMERIK 840D sl (All versions). Sending multiple specially crafted packets to the affected devices could cause a Denial-of-Service on port 102. A cold restart is required to recover the se

CVE-2020-15791 [MEDIUM] CWE-522 CVE-2020-15791: A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLU A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 CPU family (incl. SIPLUS variants) (All versions), SIMATIC WinAC RTX (F) 2010 (All versions), SINUMERIK 840D sl (All versions). The authentication protocol between a client and a PLC via port 102/tcp (ISO-TSA

CVE-2019-18336 [HIGH] CWE-400 CVE-2019-18336: A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLU A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V3.X.17), SIMATIC TDC CP51M1 (All versions < V1.1.8), SIMATIC TDC CPU555 (All versions < V1.1.1), SINUMERIK 840D sl (All versions < V4.8.6), SINUMERIK 840D sl (All versions < V4.94). Specially crafted packets sent to port 102

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-2019-10923 [HIGH] CWE-400 CVE-2019-10923: An attacker with network access to an affected product may cause a denial of service condition by br An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time synchronization (IRT) of the affected installation.

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.