Simatic Et 200Pro Im 154 4 Pn Hf

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.

Published: 2025-02-11T10:28:33.403Z
Updated: 2025-07-10T10:53:47.525Z

Profinet-IO (PNIO) stack versions prior V06.00 do not properly limit internal resource allocation when multiple legitimate diagnostic package requests are sent to the DCE-RPC interface. This could lead to a denial of service condition due to lack of memory for devices that include a vulnerable version of the stack. The security vulnerability could be exploited by an attacker with network access to an affected device. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the availability of the device.

Published: 2020-02-11T15:36:10.000Z
Updated: 2024-08-05T00:05:44.023Z

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.

Published: 2019-10-10T00:00:00.000Z
Updated: 2024-08-04T22:40:15.253Z

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.

Published: 2019-10-10T13:49:24.000Z
Updated: 2025-02-11T10:26:23.281Z

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.

Published: 2017-05-11T10:00:00.000Z
Updated: 2024-09-10T09:33:20.658Z