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Fencer Vulns
high 7.5

CVE-2025-24811 json

A vulnerability has been identified in SIMATIC S7-1200 CPU 1211C AC/DC/Rly (6ES7211-1BE40-0XB0), SIMATIC S7-1200 CPU 1211C DC/DC/DC (6ES721…

published 2025-02-11 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-3951

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

A vulnerability has been identified in SIMATIC S7-1200 CPU 1211C AC/DC/Rly (6ES7211-1BE40-0XB0), SIMATIC S7-1200 CPU 1211C DC/DC/DC (6ES7211-1AE40-0XB0), SIMATIC S7-1200 CPU 1211C DC/DC/Rly (6ES7211-1HE40-0XB0), SIMATIC S7-1200 CPU 1212C AC/DC/Rly (6ES7212-1BE40-0XB0), SIMATIC S7-1200 CPU 1212C DC/DC/DC (6ES7212-1AE40-0XB0), SIMATIC S7-1200 CPU 1212C DC/DC/Rly (6ES7212-1HE40-0XB0), SIMATIC S7-1200 CPU 1212FC DC/DC/DC (6ES7212-1AF40-0XB0), SIMATIC S7-1200 CPU 1212FC DC/DC/Rly (6ES7212-1HF40-0XB0), SIMATIC S7-1200 CPU 1214C AC/DC/Rly (6ES7214-1BG40-0XB0), SIMATIC S7-1200 CPU 1214C DC/DC/DC (6ES7214-1AG40-0XB0), SIMATIC S7-1200 CPU 1214C DC/DC/Rly (6ES7214-1HG40-0XB0), SIMATIC S7-1200 CPU 1214FC DC/DC/DC (6ES7214-1AF40-0XB0), SIMATIC S7-1200 CPU 1214FC DC/DC/Rly (6ES7214-1HF40-0XB0), SIMATIC S7-1200 CPU 1215C AC/DC/Rly (6ES7215-1BG40-0XB0), SIMATIC S7-1200 CPU 1215C DC/DC/DC (6ES7215-1AG40-0XB0), SIMATIC S7-1200 CPU 1215C DC/DC/Rly (6ES7215-1HG40-0XB0), SIMATIC S7-1200 CPU 1215FC DC/DC/DC (6ES7215-1AF40-0XB0), SIMATIC S7-1200 CPU 1215FC DC/DC/Rly (6ES7215-1HF40-0XB0), SIMATIC S7-1200 CPU 1217C DC/DC/DC (6ES7217-1AG40-0XB0), SIPLUS S7-1200 CPU 1212 AC/DC/RLY (6AG1212-1BE40-2XB0), SIPLUS S7-1200 CPU 1212 AC/DC/RLY (6AG1212-1BE40-4XB0), SIPLUS S7-1200 CPU 1212 DC/DC/RLY (6AG1212-1HE40-2XB0), SIPLUS S7-1200 CPU 1212 DC/DC/RLY (6AG1212-1HE40-4XB0), SIPLUS S7-1200 CPU 1212C DC/DC/DC (6AG1212-1AE40-2XB0), SIPLUS S7-1200 CPU 1212C DC/DC/DC (6AG1212-1AE40-4XB0), SIPLUS S7-1200 CPU 1212C DC/DC/DC RAIL (6AG2212-1AE40-1XB0), SIPLUS S7-1200 CPU 1214 AC/DC/RLY (6AG1214-1BG40-2XB0), SIPLUS S7-1200 CPU 1214 AC/DC/RLY (6AG1214-1BG40-4XB0), SIPLUS S7-1200 CPU 1214 AC/DC/RLY (6AG1214-1BG40-5XB0), SIPLUS S7-1200 CPU 1214 DC/DC/DC (6AG1214-1AG40-2XB0), SIPLUS S7-1200 CPU 1214 DC/DC/DC (6AG1214-1AG40-4XB0), SIPLUS S7-1200 CPU 1214 DC/DC/DC (6AG1214-1AG40-5XB0), SIPLUS S7-1200 CPU 1214 DC/DC/RLY (6AG1214-1HG40-2XB0), SIPLUS S7-1200 CPU 1214 DC/DC/RLY (6AG1214-1HG40-4XB0), SIPLUS S7-1200 CPU 1214 DC/DC/RLY (6AG1214-1HG40-5XB0), SIPLUS S7-1200 CPU 1214C DC/DC/DC RAIL (6AG2214-1AG40-1XB0), SIPLUS S7-1200 CPU 1214FC DC/DC/DC (6AG1214-1AF40-5XB0), SIPLUS S7-1200 CPU 1214FC DC/DC/RLY (6AG1214-1HF40-5XB0), SIPLUS S7-1200 CPU 1215 AC/DC/RLY (6AG1215-1BG40-2XB0), SIPLUS S7-1200 CPU 1215 AC/DC/RLY (6AG1215-1BG40-4XB0), SIPLUS S7-1200 CPU 1215 AC/DC/RLY (6AG1215-1BG40-5XB0), SIPLUS S7-1200 CPU 1215 DC/DC/DC (6AG1215-1AG40-2XB0), SIPLUS S7-1200 CPU 1215 DC/DC/DC (6AG1215-1AG40-4XB0), SIPLUS S7-1200 CPU 1215 DC/DC/RLY (6AG1215-1HG40-2XB0), SIPLUS S7-1200 CPU 1215 DC/DC/RLY (6AG1215-1HG40-4XB0), SIPLUS S7-1200 CPU 1215 DC/DC/RLY (6AG1215-1HG40-5XB0), SIPLUS S7-1200 CPU 1215C DC/DC/DC (6AG1215-1AG40-5XB0), SIPLUS S7-1200 CPU 1215FC DC/DC/DC (6AG1215-1AF40-5XB0). Affected devices do not process correctly certain special crafted packets sent to port 80/tcp, which could allow an unauthenticated attacker to cause a denial of service in the device.

Patch / fix

  • 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
  • Siemens SIMATIC S7-1200 CPU 1214FC DC/DC/Rly V4.7
  • Siemens SIMATIC S7-1200 CPU 1215C AC/DC/Rly V4.7
  • Siemens SIMATIC S7-1200 CPU 1215C DC/DC/DC V4.7
  • Siemens SIMATIC S7-1200 CPU 1215C DC/DC/Rly V4.7
  • Siemens SIMATIC S7-1200 CPU 1215FC DC/DC/DC V4.7
  • Siemens SIMATIC S7-1200 CPU 1215FC DC/DC/Rly V4.7
  • Siemens SIMATIC S7-1200 CPU 1217C DC/DC/DC V4.7
  • Siemens SIPLUS S7-1200 CPU 1212 AC/DC/RLY V4.7
  • Siemens SIPLUS S7-1200 CPU 1212 DC/DC/RLY V4.7
  • Siemens SIPLUS S7-1200 CPU 1212C DC/DC/DC V4.7
  • Siemens SIPLUS S7-1200 CPU 1212C DC/DC/DC RAIL V4.7
  • Siemens SIPLUS S7-1200 CPU 1214 AC/DC/RLY V4.7
  • Siemens SIPLUS S7-1200 CPU 1214 DC/DC/DC V4.7
  • Siemens SIPLUS S7-1200 CPU 1214 DC/DC/RLY V4.7
  • Siemens SIPLUS S7-1200 CPU 1214C DC/DC/DC RAIL V4.7
  • Siemens SIPLUS S7-1200 CPU 1214FC DC/DC/DC V4.7
  • Siemens SIPLUS S7-1200 CPU 1214FC DC/DC/RLY V4.7
  • Siemens SIPLUS S7-1200 CPU 1215 AC/DC/RLY V4.7

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-25-044-01 updated cvss 7.5

Siemens SIMATIC S7-1200 CPU Family

  • Siemens SIMATIC S7-1200 CPU 1211C AC/DC/Rly (6ES7211-1BE40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1211C DC/DC/DC (6ES7211-1AE40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1211C DC/DC/Rly (6ES7211-1HE40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1212C AC/DC/Rly (6ES7212-1BE40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1212C DC/DC/DC (6ES7212-1AE40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1212C DC/DC/Rly (6ES7212-1HE40-0XB0) <V4.7
    +34 more products
    Siemens SIMATIC S7-1200 CPU 1212FC DC/DC/DC (6ES7212-1AF40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1212FC DC/DC/Rly (6ES7212-1HF40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1214C AC/DC/Rly (6ES7214-1BG40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1214C DC/DC/DC (6ES7214-1AG40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1214C DC/DC/Rly (6ES7214-1HG40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1214FC DC/DC/DC (6ES7214-1AF40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1214FC DC/DC/Rly (6ES7214-1HF40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1215C AC/DC/Rly (6ES7215-1BG40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1215C DC/DC/DC (6ES7215-1AG40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1215C DC/DC/Rly (6ES7215-1HG40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1215FC DC/DC/DC (6ES7215-1AF40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1215FC DC/DC/Rly (6ES7215-1HF40-0XB0) <V4.7 Siemens SIMATIC S7-1200 CPU 1217C DC/DC/DC (6ES7217-1AG40-0XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1212 AC/DC/RLY (6AG1212-1BE40-2XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1212 AC/DC/RLY (6AG1212-1BE40-4XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1212 DC/DC/RLY (6AG1212-1HE40-2XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1212 DC/DC/RLY (6AG1212-1HE40-4XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1212C DC/DC/DC (6AG1212-1AE40-2XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1212C DC/DC/DC (6AG1212-1AE40-4XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1212C DC/DC/DC RAIL (6AG2212-1AE40-1XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1214 AC/DC/RLY (6AG1214-1BG40-2XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1214 AC/DC/RLY (6AG1214-1BG40-4XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1214 AC/DC/RLY (6AG1214-1BG40-5XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1214 DC/DC/DC (6AG1214-1AG40-2XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1214 DC/DC/DC (6AG1214-1AG40-4XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1214 DC/DC/DC (6AG1214-1AG40-5XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1214 DC/DC/RLY (6AG1214-1HG40-2XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1214 DC/DC/RLY (6AG1214-1HG40-4XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1214 DC/DC/RLY (6AG1214-1HG40-5XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1214C DC/DC/DC RAIL (6AG2214-1AG40-1XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1214FC DC/DC/DC (6AG1214-1AF40-5XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1214FC DC/DC/RLY (6AG1214-1HF40-5XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1215 AC/DC/RLY (6AG1215-1BG40-2XB0) <V4.7 Siemens SIPLUS S7-1200 CPU 1215 AC/DC/RLY (6AG1215-1BG40-4XB0) <V4.7
    affected: fixed in V4.7 support.industry.siemens.com

8 more affected in the full advisory

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • Siemens SIMATIC S7-1200 CPU 1211C AC/DC/Rly
  • Siemens SIMATIC S7-1200 CPU 1211C DC/DC/DC
  • Siemens SIMATIC S7-1200 CPU 1211C DC/DC/Rly
  • Siemens SIMATIC S7-1200 CPU 1212C AC/DC/Rly
  • Siemens SIMATIC S7-1200 CPU 1212C DC/DC/DC
  • Siemens SIMATIC S7-1200 CPU 1212C DC/DC/Rly
  • Siemens SIMATIC S7-1200 CPU 1212FC DC/DC/DC
  • Siemens SIMATIC S7-1200 CPU 1212FC DC/DC/Rly
  • Siemens SIMATIC S7-1200 CPU 1214C AC/DC/Rly
  • Siemens SIMATIC S7-1200 CPU 1214C DC/DC/DC
  • Siemens SIMATIC S7-1200 CPU 1214C DC/DC/Rly
  • Siemens SIMATIC S7-1200 CPU 1214FC DC/DC/DC
  • Siemens SIMATIC S7-1200 CPU 1214FC DC/DC/Rly
  • Siemens SIMATIC S7-1200 CPU 1215C AC/DC/Rly
  • Siemens SIMATIC S7-1200 CPU 1215C DC/DC/DC
  • Siemens SIMATIC S7-1200 CPU 1215C DC/DC/Rly
  • Siemens SIMATIC S7-1200 CPU 1215FC DC/DC/DC
  • Siemens SIMATIC S7-1200 CPU 1215FC DC/DC/Rly
  • Siemens SIMATIC S7-1200 CPU 1217C DC/DC/DC
  • Siemens SIPLUS S7-1200 CPU 1212 AC/DC/RLY
  • Siemens SIPLUS S7-1200 CPU 1212 DC/DC/RLY
  • Siemens SIPLUS S7-1200 CPU 1212C DC/DC/DC
  • Siemens SIPLUS S7-1200 CPU 1212C DC/DC/DC RAIL
  • Siemens SIPLUS S7-1200 CPU 1214 AC/DC/RLY
  • Siemens SIPLUS S7-1200 CPU 1214 DC/DC/DC
  • Siemens SIPLUS S7-1200 CPU 1214 DC/DC/RLY
  • Siemens SIPLUS S7-1200 CPU 1214C DC/DC/DC RAIL
  • Siemens SIPLUS S7-1200 CPU 1214FC DC/DC/DC
  • Siemens SIPLUS S7-1200 CPU 1214FC DC/DC/RLY
  • Siemens SIPLUS S7-1200 CPU 1215 AC/DC/RLY
  • Siemens SIPLUS S7-1200 CPU 1215 DC/DC/DC
  • Siemens SIPLUS S7-1200 CPU 1215 DC/DC/RLY
  • Siemens SIPLUS S7-1200 CPU 1215C DC/DC/DC
  • Siemens SIPLUS S7-1200 CPU 1215FC DC/DC/DC

Classification

Weakness
  • CWE-404 Improper Resource Shutdown or Release

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.