Siemens SIMATIC S7-1200 CPU 1211C AC up to 4.6 denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.3	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Siemens SIMATIC S7-1200 CPU 1211C AC, DC, Rly, SIMATIC S7-1200 CPU 1211C DC, SIMATIC S7-1200 CPU 1212C AC, SIMATIC S7-1200 CPU 1212C DC, SIMATIC S7-1200 CPU 1212FC DC, SIMATIC S7-1200 CPU 1214C AC, SIMATIC S7-1200 CPU 1214C DC, SIMATIC S7-1200 CPU 1214FC DC, SIMATIC S7-1200 CPU 1215C AC, SIMATIC S7-1200 CPU 1215C DC, SIMATIC S7-1200 CPU 1215FC DC, SIMATIC S7-1200 CPU 1217C DC, SIPLUS S7-1200 CPU 1212 AC, RLY, SIPLUS S7-1200 CPU 1212 DC, SIPLUS S7-1200 CPU 1212C DC, DC RAIL, SIPLUS S7-1200 CPU 1214 AC, SIPLUS S7-1200 CPU 1214 DC, SIPLUS S7-1200 CPU 1214C DC, SIPLUS S7-1200 CPU 1214FC DC, SIPLUS S7-1200 CPU 1215 AC, SIPLUS S7-1200 CPU 1215 DC, SIPLUS S7-1200 CPU 1215C DC and SIPLUS S7-1200 CPU 1215FC DC up to 4.6 and classified as problematic. The affected element is an unknown function. The manipulation leads to denial of service. This vulnerability is referenced as CVE-2025-24811. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Siemens SIMATIC S7-1200 CPU 1211C AC, DC, Rly, SIMATIC S7-1200 CPU 1211C DC, SIMATIC S7-1200 CPU 1212C AC, SIMATIC S7-1200 CPU 1212C DC, SIMATIC S7-1200 CPU 1212FC DC, SIMATIC S7-1200 CPU 1214C AC, SIMATIC S7-1200 CPU 1214C DC, SIMATIC S7-1200 CPU 1214FC DC, SIMATIC S7-1200 CPU 1215C AC, SIMATIC S7-1200 CPU 1215C DC, SIMATIC S7-1200 CPU 1215FC DC, SIMATIC S7-1200 CPU 1217C DC, SIPLUS S7-1200 CPU 1212 AC, RLY, SIPLUS S7-1200 CPU 1212 DC, SIPLUS S7-1200 CPU 1212C DC, DC RAIL, SIPLUS S7-1200 CPU 1214 AC, SIPLUS S7-1200 CPU 1214 DC, SIPLUS S7-1200 CPU 1214C DC, SIPLUS S7-1200 CPU 1214FC DC, SIPLUS S7-1200 CPU 1215 AC, SIPLUS S7-1200 CPU 1215 DC, SIPLUS S7-1200 CPU 1215C DC and SIPLUS S7-1200 CPU 1215FC DC up to 4.6. It has been rated as critical. This issue affects an unknown part. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

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.

It is possible to read the advisory at cert-portal.siemens.com. The identification of this vulnerability is CVE-2025-24811 since 01/24/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 4.7 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• SCADA Software

Vendor

• Siemens

Name

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

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6

License

• commercial

Website

• Vendor: https://www.siemens.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (siemens): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SIMATIC S7-1200 CPU 1211C AC/DC/Rly/SIMATIC S7-1200 CPU 1211C DC/SIMATIC S7-1200 CPU 1212C AC/SIMATIC S7-1200 CPU 1212C DC/SIMATIC S7-1200 CPU 1212FC DC/SIMATIC S7-1200 CPU 1214C AC/SIMATIC S7-1200 CPU 1214C DC/SIMATIC S7-1200 CPU 1214FC DC/SIMATIC S7-1200 CPU 1215C AC/SIMATIC S7-1200 CPU 1215C DC/SIMATIC S7-1200 CPU 1215FC DC/SIMATIC S7-1200 CPU 1217C DC/SIPLUS S7-1200 CPU 1212 AC/RLY/SIPLUS S7-1200 CPU 1212 DC/SIPLUS S7-1200 CPU 1212C DC/DC RAIL/SIPLUS S7-1200 CPU 1214 AC/SIPLUS S7-1200 CPU 1214 DC/SIPLUS S7-1200 CPU 1214C DC/SIPLUS S7-1200 CPU 1214FC DC/SIPLUS S7-1200 CPU 1215 AC/SIPLUS S7-1200 CPU 1215 DC/SIPLUS S7-1200 CPU 1215C DC/SIPLUS S7-1200 CPU 1215FC DC 4.7

Timelineinfo

01/24/2025 🔍
02/11/2025 +18 days 🔍
02/11/2025 +0 days 🔍
02/11/2025 +0 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-224824
Status: Confirmed

CVE: CVE-2025-24811 (🔍)
GCVE (CVE): GCVE-0-2025-24811
GCVE (VulDB): GCVE-100-295235

Entryinfo

Created: 02/11/2025 12:28
Updated: 02/11/2025 12:31
Changes: 02/11/2025 12:28 (42), 02/11/2025 12:31 (35)
Complete: 🔍
Committer: mitr
Cache ID: 216::103

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Discussion

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