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Vulnerabilities

CVE-2026-54429 | BDVDB-2026-348257 Detail

SiemensSIMATIC S7-PLCSIM Advanced

Description#

A vulnerability has been identified in SIMATIC S7-PLCSIM Advanced (All versions). Affected devices do not properly handle high-volume multicast network traffic, which can exhaust available memory resources in the affected application. This could allow an unauthenticated attacker on the local network segment to cause a denial-of-service condition of the affected application. The affected application becomes inaccessible and requires a manual restart; no project data is lost. Successful exploitation requires a specific project configuration to be already active on the targeted instance.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: adjacent.

Weaknesses#

  • CWE-770 Allocation of Resources Without Limits or Throttling

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.