Siemens Sinumerik 840D Sl vulnerabilities
13 vulnerabilities
Known vulnerabilities in Siemens Sinumerik 840D Sl, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.
CVE-2018-11464siemens agsinumerik 828d v4.7, sinumerik 840d sl v4.7, sinumerik 840d sl v4.8+2
EPSS score1.86%
A vulnerability has been identified in SINUMERIK 828D V4.7 (All versions < V4.7 SP6 HF1), SINUMERIK 840D sl V4.7 (All versions < V4.7 SP6 HF5), SINUMERIK 840D sl V4.8 (All versions < V4.8 SP3). The integrated VNC server on port 5900/tcp of the affected products could allow a remote attacker to cause a Denial-of-Service condition of the VNC server. Please note that this vulnerability is only exploitable if port 5900/tcp is manually opened in the firewall configuration of network port X130. The security vulnerability could be exploited by an attacker with network access to the affected devices and port. Successful exploitation requires no privileges and no user interaction. The vulnerability could allow an attacker to compromise availability of the VNC server. At the time of advisory publication no public exploitation of this security vulnerability was known.CVE-2025-40820siemenssidoor_atd430w_firmware+144EPSS score0.49%
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 addresses at precisely timed moments, and it affects only TCP-based services.CVE-2025-40743siemenssinumerik 828d ppu.4+6EPSS score0.24%
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 < V6.15 SP5). The affected application improperly validates authentication for its VNC access service, allowing access with insufficient password verification.
This could allow an attacker to gain unauthorized remote access and potentially compromise system confidentiality, integrity, or availability.CVE-2025-40833siemensie/pb link ha+242EPSS score0.32%
The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual restart is required to recover the system.CVE-2020-15791siemenssimatic s7-300 cpu family (incl. related et200 cpus and siplus variants)+3EPSS score0.72%
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-TSAP) insufficiently protects the transmitted password. This could allow an attacker that is able to intercept the network traffic to obtain valid PLC credentials.CVE-2020-15783siemenssimatic s7-300 cpu family (incl. related et200 cpus and siplus variants)+2EPSS score1.67%
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 service.CVE-2017-2681siemensdevelopment/evaluation kits for profinet io: dk standard ethernet controller+174EPSS score0.91%
Specially crafted PROFINET DCP packets sent on a local Ethernet segment (Layer 2) to an affected product could cause a denial of service condition of that product. Human interaction is required to recover the system. PROFIBUS interfaces are not affected.CVE-2017-2680siemensdevelopment/evaluation kits for profinet io: dk standard ethernet controller+200EPSS score1.15%
Specially crafted PROFINET DCP broadcast packets could cause a denial of service condition of affected products on a local Ethernet segment (Layer 2). Human interaction is required to recover the systems. PROFIBUS interfaces are not affected.CVE-2017-12741siemensdevelopment/evaluation kits for profinet io: dk standard ethernet controller+118EPSS score3.31%
Specially crafted packets sent to port 161/udp could cause a denial of service condition. The affected devices must be restarted manually.CVE-2024-23814siemenssidoor_atd430w_firmware+136EPSS score0.62%
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 services are not affected. Affected devices will resume normal operation after the attack terminates.CVE-2019-18336siemens agsimatic s7-300 cpu family (incl. related et200 cpus and siplus variants)+15EPSS score1.72%
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/tcp (Profinet) could cause the affected device to go into defect mode. A restart is required in order to recover the system. Successful exploitation requires an attacker to have network access to port 102/tcp, with no authentication. No user interation is required. At the time of advisory publication no public exploitation of this security vulnerability was known.CVE-2019-10936siemensdevelopment/evaluation kits for profinet io: dk standard ethernet controller+139EPSS score2.07%
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-2019-10923siemenscp1604_firmware+110EPSS score1.40%
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.