The vulnerability of the microprogramming software of the SIMATIC CN 4100 communication gateway, related to writing outside the buffer, allows a intruder to cause a service failure.

The vulnerability of the MICROprogramming software for the SIMATIC CN 4100 communication gateway is related to writing outside the buffer boundaries. Exploiting this vulnerability could allow a malicious actor to cause service interruptions...

CVE-2026-22925

A vulnerability has been identified in SIMATIC CN 4100 All versions V5.0. The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets This could allow an attacker to render the service unavailable and cause denial-of-service conditions by...

SIMATIC CN 4100 resource management error vulnerability

The SIMATIC CN 4100 is an Siemens industrial communication device used for industrial network connections and control communications. The Siemens SIMATIC CN 4100 has a resource management vulnerability. This vulnerability arises due to applications not properly restricting unauthorized connection...

EUVD-2026-29424

A vulnerability has been identified in SIMATIC CN 4100 All versions V5.0. The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets This could allow an attacker to render the service unavailable and cause denial-of-service conditions by...

EUVD-2026-29423

A vulnerability has been identified in SIMATIC CN 4100 All versions V5.0. The affected application does not properly restrict unauthenticated connections and is susceptible to resource exhaustion conditions. This could allow an attacker to disrupt normal operations or perform unauthorized actions...

CVE-2026-22925

A vulnerability has been identified in SIMATIC CN 4100 All versions V5.0. The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets This could allow an attacker to render the service unavailable and cause denial-of-service conditions by...

CVE-2026-22924

A vulnerability has been identified in SIMATIC CN 4100 All versions V5.0. The affected application does not properly restrict unauthenticated connections and is susceptible to resource exhaustion conditions. This could allow an attacker to disrupt normal operations or perform unauthorized actions...

CVE-2026-22925

CVE-2026-22925 affects Siemens SIMATIC CN 4100 (all versions

CVE-2026-22925

A vulnerability has been identified in SIMATIC CN 4100 All versions V5.0. The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets This could allow an attacker to render the service unavailable and cause denial-of-service conditions by...

CVE-2026-22925

A vulnerability has been identified in SIMATIC CN 4100 All versions V5.0. The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets This could allow an attacker to render the service unavailable and cause denial-of-service conditions by...

CVE-2026-22925

A vulnerability has been identified in SIMATIC CN 4100 All versions V5.0. The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets This could allow an attacker to render the service unavailable and cause denial-of-service conditions by...

CVE-2026-22924

A vulnerability has been identified in SIMATIC CN 4100 All versions V5.0. The affected application does not properly restrict unauthenticated connections and is susceptible to resource exhaustion conditions. This could allow an attacker to disrupt normal operations or perform unauthorized actions...

CVE-2026-22924: Missing Authentication for Critical Function

A vulnerability has been identified in SIMATIC CN 4100 All versions V5.0. The affected application does not properly restrict unauthenticated connections and is susceptible to resource exhaustion conditions. This could allow an attacker to disrupt normal operations or perform unauthorized actions...

CVE-2026-22925: Allocation of Resources Without Limits or Throttling

A vulnerability has been identified in SIMATIC CN 4100 All versions V5.0. The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets This could allow an attacker to render the service unavailable and cause denial-of-service conditions by...

PT-2026-39983

Name of the Vulnerable Software and Affected Versions SIMATIC CN 4100 versions prior to V5.0 Description SIMATIC CN 4100 is susceptible to resource exhaustion when subjected to a high volume of TCP SYN packets, a condition known as a TCP SYN flood. This allows an attacker to overwhelm system...

CVE-2025-40939

A vulnerability has been identified in SIMATIC CN 4100 All versions V4.0.1. The affected device contains a USB port which allows unauthenticated connections. This could allow an attacker with physical access to the device to trigger reboot that could cause denial of service condition...

CVE-2023-29130

A vulnerability has been identified in SIMATIC CN 4100 All versions V2.5. Affected device consists of improper access controls in the configuration files that leads to privilege escalation. An attacker could gain admin access with this vulnerability leading to complete device control...

CVE-2023-49621

A vulnerability has been identified in SIMATIC CN 4100 All versions V2.7. The "intermediate installation" system state of the affected application uses default credential with admin privileges. An attacker could use the credentials to gain complete control of the affected device...

CVE-2023-49252

A vulnerability has been identified in SIMATIC CN 4100 All versions V2.7. The affected application allows IP configuration change without authentication to the device. This could allow an attacker to cause denial of service condition...

CVE-2023-49251

A vulnerability has been identified in SIMATIC CN 4100 All versions V2.7. The "intermediate installation" system state of the affected application allows an attacker to add their own login credentials to the device. This allows an attacker to remotely login as root and take control of the device...