Improper input validation in Schneider Electric Modicon Controllers M241 / M251
CVE-2024-11737
CWE-20: Improper Input Validation vulnerability exists that could lead to a denial of service and a loss of confidentiality, integrity of the controller when an unauthenticated crafted Modbus packet is sent to the device.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.006 (45.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Schneider Electric Modicon Controllers M241 / M251 — versions All versions
- Schneider Electric Modicon Controllers M258 / Lmc058 — versions All versions
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2024-11737?
- CVE-2024-11737 is a critical-severity vulnerability in Schneider Electric Modicon Controllers M241 / M251, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2024-12-11.
- How severe is CVE-2024-11737?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2024-11737 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.