CVE-2025-24812

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-02-11 · updated 2026-06-17
Weakness: CWE-1286

Description

A vulnerability has been identified in SIMATIC S7-1200 CPU 1211C AC/DC/Rly (6ES7211-1BE40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1211C DC/DC/DC (6ES7211-1AE40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1211C DC/DC/Rly (6ES7211-1HE40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1212C AC/DC/Rly (6ES7212-1BE40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1212C DC/DC/DC (6ES7212-1AE40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1212C DC/DC/Rly (6ES7212-1HE40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1212FC DC/DC/DC (6ES7212-1AF40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1212FC DC/DC/Rly (6ES7212-1HF40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1214C AC/DC/Rly (6ES7214-1BG40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1214C DC/DC/DC (6ES7214-1AG40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1214C DC/DC/Rly (6ES7214-1HG40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1214FC DC/DC/DC (6ES7214-1AF40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1214FC DC/DC/Rly (6ES7214-1HF40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1215C AC/DC/Rly (6ES7215-1BG40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1215C DC/DC/DC (6ES7215-1AG40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1215C DC/DC/Rly (6ES7215-1HG40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1215FC DC/DC/DC (6ES7215-1AF40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1215FC DC/DC/Rly (6ES7215-1HF40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1217C DC/DC/DC (6ES7217-1AG40-0XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1212 AC/DC/RLY (6AG1212-1BE40-2XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1212 AC/DC/RLY (6AG1212-1BE40-4XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1212 DC/DC/RLY (6AG1212-1HE40-2XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1212 DC/DC/RLY (6AG1212-1HE40-4XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1212C DC/DC/DC (6AG1212-1AE40-2XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1212C DC/DC/DC (6AG1212-1AE40-4XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1212C DC/DC/DC RAIL (6AG2212-1AE40-1XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1214 AC/DC/RLY (6AG1214-1BG40-2XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1214 AC/DC/RLY (6AG1214-1BG40-4XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1214 AC/DC/RLY (6AG1214-1BG40-5XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1214 DC/DC/DC (6AG1214-1AG40-2XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1214 DC/DC/DC (6AG1214-1AG40-4XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1214 DC/DC/DC (6AG1214-1AG40-5XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1214 DC/DC/RLY (6AG1214-1HG40-2XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1214 DC/DC/RLY (6AG1214-1HG40-4XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1214 DC/DC/RLY (6AG1214-1HG40-5XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1214C DC/DC/DC RAIL (6AG2214-1AG40-1XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1214FC DC/DC/DC (6AG1214-1AF40-5XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1214FC DC/DC/RLY (6AG1214-1HF40-5XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1215 AC/DC/RLY (6AG1215-1BG40-2XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1215 AC/DC/RLY (6AG1215-1BG40-4XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1215 AC/DC/RLY (6AG1215-1BG40-5XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1215 DC/DC/DC (6AG1215-1AG40-2XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1215 DC/DC/DC (6AG1215-1AG40-4XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1215 DC/DC/RLY (6AG1215-1HG40-2XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1215 DC/DC/RLY (6AG1215-1HG40-4XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1215 DC/DC/RLY (6AG1215-1HG40-5XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1215C DC/DC/DC (6AG1215-1AG40-5XB0) (All versions < V4.7), SIPLUS S7-1200 CPU 1215FC DC/DC/DC (6AG1215-1AF40-5XB0) (All versions < V4.7). Affected devices do not process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device.

Affected products

Siemens SIMATIC S7-1200 CPU 1211C AC/DC/Rly: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1211C DC/DC/DC: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1211C DC/DC/Rly: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1212C AC/DC/Rly: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1212C DC/DC/DC: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1212C DC/DC/Rly: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1212FC DC/DC/DC: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1212FC DC/DC/Rly: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1214C AC/DC/Rly: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1214C DC/DC/DC: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1214C DC/DC/Rly: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1214FC DC/DC/DC: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1214FC DC/DC/Rly: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1215C AC/DC/Rly: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1215C DC/DC/DC: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1215C DC/DC/Rly: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1215FC DC/DC/DC: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1215FC DC/DC/Rly: before V4.7 — fixed in V4.7
Siemens SIMATIC S7-1200 CPU 1217C DC/DC/DC: before V4.7 — fixed in V4.7
Siemens SIPLUS S7-1200 CPU 1212 AC/DC/RLY: before V4.7 — fixed in V4.7
Siemens SIPLUS S7-1200 CPU 1212 DC/DC/RLY: before V4.7 — fixed in V4.7
Siemens SIPLUS S7-1200 CPU 1212C DC/DC/DC: before V4.7 — fixed in V4.7
Siemens SIPLUS S7-1200 CPU 1212C DC/DC/DC RAIL: before V4.7 — fixed in V4.7
Siemens SIPLUS S7-1200 CPU 1214 AC/DC/RLY: before V4.7 — fixed in V4.7
Siemens SIPLUS S7-1200 CPU 1214 DC/DC/DC: before V4.7 — fixed in V4.7
Siemens SIPLUS S7-1200 CPU 1214 DC/DC/RLY: before V4.7 — fixed in V4.7
Siemens SIPLUS S7-1200 CPU 1214C DC/DC/DC RAIL: before V4.7 — fixed in V4.7
Siemens SIPLUS S7-1200 CPU 1214FC DC/DC/DC: before V4.7 — fixed in V4.7
Siemens SIPLUS S7-1200 CPU 1214FC DC/DC/RLY: before V4.7 — fixed in V4.7
Siemens SIPLUS S7-1200 CPU 1215 AC/DC/RLY: before V4.7 — fixed in V4.7

How to fix

Upgrade to a fixed version: Siemens SIMATIC S7-1200 CPU 1211C AC/DC/Rly V4.7; Siemens SIMATIC S7-1200 CPU 1211C DC/DC/DC V4.7; Siemens SIMATIC S7-1200 CPU 1211C DC/DC/Rly V4.7; Siemens SIMATIC S7-1200 CPU 1212C AC/DC/Rly V4.7; Siemens SIMATIC S7-1200 CPU 1212C DC/DC/DC V4.7; Siemens SIMATIC S7-1200 CPU 1212C DC/DC/Rly V4.7; Siemens SIMATIC S7-1200 CPU 1212FC DC/DC/DC V4.7; Siemens SIMATIC S7-1200 CPU 1212FC DC/DC/Rly V4.7; Siemens SIMATIC S7-1200 CPU 1214C AC/DC/Rly V4.7; Siemens SIMATIC S7-1200 CPU 1214C DC/DC/DC V4.7; Siemens SIMATIC S7-1200 CPU 1214C DC/DC/Rly V4.7; Siemens SIMATIC S7-1200 CPU 1214FC DC/DC/DC V4.7. Check the vendor advisory for mitigations.

References

https://cert-portal.siemens.com/productcert/html/ssa-224824.html

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