CVE-2025-40815

High

Description

A vulnerability has been identified in LOGO! 12/24RCE (6ED1052-1MD08-0BA2) (All versions < V1.84.05), LOGO! 12/24RCEo (6ED1052-2MD08-0BA2) (All versions < V1.84.05), LOGO! 230RCE (6ED1052-1FB08-0BA2) (All versions < V1.84.05), LOGO! 230RCEo (6ED1052-2FB08-0BA2) (All versions < V1.84.05), LOGO! 24CE (6ED1052-1CC08-0BA2) (All versions < V1.84.05), LOGO! 24CEo (6ED1052-2CC08-0BA2) (All versions < V1.84.05), LOGO! 24RCE (6ED1052-1HB08-0BA2) (All versions < V1.84.05), LOGO! 24RCEo (6ED1052-2HB08-0BA2) (All versions < V1.84.05), SIPLUS LOGO! 12/24RCE (6AG1052-1MD08-7BA2) (All versions < V1.84.05), SIPLUS LOGO! 12/24RCEo (6AG1052-2MD08-7BA2) (All versions < V1.84.05), SIPLUS LOGO! 230RCE (6AG1052-1FB08-7BA2) (All versions < V1.84.05), SIPLUS LOGO! 230RCEo (6AG1052-2FB08-7BA2) (All versions < V1.84.05), SIPLUS LOGO! 24CE (6AG1052-1CC08-7BA2) (All versions < V1.84.05), SIPLUS LOGO! 24CEo (6AG1052-2CC08-7BA2) (All versions < V1.84.05), SIPLUS LOGO! 24RCE (6AG1052-1HB08-7BA2) (All versions < V1.84.05), SIPLUS LOGO! 24RCEo (6AG1052-2HB08-7BA2) (All versions < V1.84.05). Affected devices do not properly validate the structure of TCP packets in several methods. This could allow an attacker to cause buffer overflows, get control over the instruction counter and run custom code.

SeverityHigh
CVSS7.2
Exploit probability—
ProductLOGO! 12/24RCE
PublishedNov 11, 2025
First seenNov 11, 2025
Weakness typeCWE-120CWE-120

How to fix

Update
  • Siemens LOGO! 12/24RCEV1.84.05 or later
  • Siemens LOGO! 12/24RCEoV1.84.05 or later
  • Siemens LOGO! 230RCEV1.84.05 or later
  • Siemens LOGO! 230RCEoV1.84.05 or later
  • Siemens LOGO! 24CEV1.84.05 or later
  • Siemens LOGO! 24CEoV1.84.05 or later
  • Siemens LOGO! 24RCEV1.84.05 or later
  • Siemens LOGO! 24RCEoV1.84.05 or later
  • Siemens SIPLUS LOGO! 12/24RCEV1.84.05 or later
  • Siemens SIPLUS LOGO! 12/24RCEoV1.84.05 or later
  • Siemens SIPLUS LOGO! 230RCEV1.84.05 or later
  • Siemens SIPLUS LOGO! 230RCEoV1.84.05 or later

Affected products

ProductAffected versionsFixed in
Siemens LOGO! 12/24RCEv < V1.84.05V1.84.05
Siemens LOGO! 12/24RCEov < V1.84.05V1.84.05
Siemens LOGO! 230RCEv < V1.84.05V1.84.05
Siemens LOGO! 230RCEov < V1.84.05V1.84.05
Siemens LOGO! 24CEv < V1.84.05V1.84.05
Siemens LOGO! 24CEov < V1.84.05V1.84.05
Siemens LOGO! 24RCEv < V1.84.05V1.84.05
Siemens LOGO! 24RCEov < V1.84.05V1.84.05
Siemens SIPLUS LOGO! 12/24RCEv < V1.84.05V1.84.05
Siemens SIPLUS LOGO! 12/24RCEov < V1.84.05V1.84.05
Siemens SIPLUS LOGO! 230RCEv < V1.84.05V1.84.05
Siemens SIPLUS LOGO! 230RCEov < V1.84.05V1.84.05
Siemens SIPLUS LOGO! 24CEv < V1.84.05V1.84.05
Siemens SIPLUS LOGO! 24CEov < V1.84.05V1.84.05
Siemens SIPLUS LOGO! 24RCEv < V1.84.05V1.84.05
Siemens SIPLUS LOGO! 24RCEov < V1.84.05V1.84.05

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