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CVE-2025-24811

Quick assessment

Affected
Siemens SIMATIC S7-1200 CPU 1211C AC/DC/Rly
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Siemens SIMATIC S7-1200是德国西门子（Siemens）公司的一款S7-1200系列PLC（可编程逻辑控制器）。 Siemens SIMATIC S7-1200存在安全漏洞，该漏洞源于受影响的设备无法正确处理发送到端口80/tcp的某些特殊制作的数据包，这可能允许未经身份验证的攻击者导致设备拒绝服务。

CVSS 7.5 · High EPSS 0.61% · P47

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-24811

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不恰当的资源关闭或释放
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens SIMATIC S7-1200 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIMATIC S7-1200是德国西门子（Siemens）公司的一款S7-1200系列PLC（可编程逻辑控制器）。 Siemens SIMATIC S7-1200存在安全漏洞，该漏洞源于受影响的设备无法正确处理发送到端口80/tcp的某些特殊制作的数据包，这可能允许未经身份验证的攻击者导致设备拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Siemens SIMATIC S7-1200 CPU 1211C AC/DC/Rly 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1211C DC/DC/DC 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1211C DC/DC/Rly 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1212C AC/DC/Rly 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1212C DC/DC/DC 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1212C DC/DC/Rly 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1212FC DC/DC/DC 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1212FC DC/DC/Rly 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1214C AC/DC/Rly 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1214C DC/DC/DC 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1214C DC/DC/Rly 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1214FC DC/DC/DC 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1214FC DC/DC/Rly 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1215C AC/DC/Rly 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1215C DC/DC/DC 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1215C DC/DC/Rly 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1215FC DC/DC/DC 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1215FC DC/DC/Rly 0 ~ V4.7 -
Siemens SIMATIC S7-1200 CPU 1217C DC/DC/DC 0 ~ V4.7 -
Siemens SIPLUS S7-1200 CPU 1212 AC/DC/RLY 0 ~ V4.7 -
Siemens SIPLUS S7-1200 CPU 1212 AC/DC/RLY 0 ~ V4.7 -
Siemens SIPLUS S7-1200 CPU 1212 DC/DC/RLY 0 ~ V4.7 -
Siemens SIPLUS S7-1200 CPU 1212 DC/DC/RLY 0 ~ V4.7 -
Siemens SIPLUS S7-1200 CPU 1212C DC/DC/DC 0 ~ V4.7 -
Siemens SIPLUS S7-1200 CPU 1212C DC/DC/DC 0 ~ V4.7 -
Siemens SIPLUS S7-1200 CPU 1212C DC/DC/DC RAIL 0 ~ V4.7 -
Siemens SIPLUS S7-1200 CPU 1214 AC/DC/RLY 0 ~ V4.7 -
Siemens SIPLUS S7-1200 CPU 1214 AC/DC/RLY 0 ~ V4.7 -
Siemens SIPLUS S7-1200 CPU 1214 AC/DC/RLY 0 ~ V4.7 -
Siemens SIPLUS S7-1200 CPU 1214 DC/DC/DC 0 ~ V4.7 -

II. Public POCs for CVE-2025-24811

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III. Intelligence Information for CVE-2025-24811

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Vendor Advisories for CVE-2025-24811 (1)

Same Patch Batch · Siemens · 2025-02-11 · 16 CVEs total

CVE-2024-45386 8.8 HIGH Siemens SIMATIC PCS和Siemens TIA Administrator 代码问题漏洞
CVE-2024-54015 7.5 HIGH Siemens SIPROTEC 5 安全漏洞
CVE-2024-54089 7.5 HIGH Siemens APOGEE Series 加密问题漏洞
CVE-2025-23363 7.4 HIGH Siemens Teamcenter 输入验证错误漏洞
CVE-2025-24499 7.2 HIGH Siemens SCALANCE Series 输入验证错误漏洞
CVE-2025-23403 7.0 HIGH Siemens SIMATIC IPC DiagBase 安全漏洞
CVE-2024-53648 6.8 MEDIUM Siemens SIPROTEC 5 安全漏洞
CVE-2024-53977 6.7 MEDIUM Siemens ModelSim和Siemens Questa 代码问题漏洞
CVE-2025-24812 6.5 MEDIUM Siemens SIMATIC S7-1200 安全漏洞
CVE-2025-24956 6.2 MEDIUM Siemens OpenV2G 安全漏洞
CVE-2024-54090 5.9 MEDIUM Siemens APOGEE Series 缓冲区错误漏洞
CVE-2023-37482 5.3 MEDIUM Siemens SIMATIC S7-1200和SIMATIC S7-1500 安全漏洞
CVE-2024-23814 5.3 MEDIUM Siemens SCALANCE Series 资源管理错误漏洞
CVE-2024-53651 4.6 MEDIUM Siemens SIPROTEC 5 安全漏洞
CVE-2025-24532 4.3 MEDIUM Siemens SCALANCE Series 访问控制错误漏洞

IV. Related Vulnerabilities

Same product: SIMATIC S7-1200 CPU 1211C AC/DC/Rly
Same vendor: Siemens
Same weakness: CWE-404

V. Comments for CVE-2025-24811

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