Vulnerability details

CVE-2025-3112

Schneider Electric Modicon Controllers M241 / M251

CVSS 4.0

7.1High

Official description

CWE-400: Uncontrolled Resource Consumption vulnerability exists that could cause Denial of Service when an authenticated malicious user sends manipulated HTTPS Content-Length header to the webserver.

CVSS scores

Score	Version	Source	Vector
7.1High	4.0	CVEProject cvelistV5 (CNA) (schneider)	`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`
6.5Medium	3.1	CVEProject cvelistV5 (CNA) (schneider)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`

Affected products

Vendor	Product	Versions	Source
Schneider Electric	Modicon Controllers M241 / M251	Versions prior to 5.3.12.51	CVEProject cvelistV5 (CNA)

References and advisories

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2025-161-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2025-161-02.pdf

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Details

Published: 2025-06-10
Last updated: 2025-06-10
State: Published
Assigner (CNA): schneider

Exploit prediction (EPSS)

0.65%

Probability of exploitation in 30 days

51.7%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Partial

Weaknesses (CWE)

CWE-400
Uncontrolled Resource Consumption