Siemens SIMATIC S7-1200 CPU 1211C AC up to 4.6 improper validation of syntactic correctness of input

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.
6.3	$0-$5k	0.00

Summaryinfo

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 and classified as critical. The impacted element is an unknown function. The manipulation results in improper validation of syntactic correctness of input. This vulnerability is identified as CVE-2025-24812. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical 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. Affected is an unknown code. The manipulation with an unknown input leads to a improper validation of syntactic correctness of input vulnerability. CWE is classifying the issue as CWE-1286. The product receives input that is expected to be well-formed - i.e., to comply with a certain syntax - but it does not validate or incorrectly validates that the input complies with the syntax. This is going to have an impact on availability. CVE summarizes:

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.

The advisory is shared for download at cert-portal.siemens.com. This vulnerability is traded as CVE-2025-24812 since 01/24/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 4.7 eliminates this vulnerability.

Once again VulDB remains the best source 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: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
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: Improper validation of syntactic correctness of input
CWE: CWE-1286 / CWE-20
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-2025-24812 (🔍)
GCVE (CVE): GCVE-0-2025-24812
GCVE (VulDB): GCVE-100-295236

Entryinfo

Created: 02/11/2025 12:28
Updated: 02/11/2025 12:31
Changes: 02/11/2025 12:28 (41), 02/11/2025 12:31 (35)
Complete: 🔍
Committer: mitr
Cache ID: 216::103

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