Improper input validation in Schneider Electric Modicon Controllers M241 / M251
Priority MEDIUM 49CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00637 50th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Schneider Electric | Modicon Controllers M241 / M251 | All versions | — | No fix listed | CNA |
| Schneider Electric | Modicon Controllers M258 / LMC058 | All versions | — | No fix listed | CNA |
- Modicon Controllers M241 / M251 VendorSchneider Electric Affected All versions Fixed in — No fix listed CNA
- Modicon Controllers M258 / LMC058 VendorSchneider Electric Affected All versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-11737
- 2026-10-03 Alias added: GHSA-j45x-3v7g-qxh8
- 2026-10-25 EPSS moved to the 50th–90th percentile
References
More Schneider Electric vulnerabilities
- TI-2018-05679 SQL injection in U.motion Builder software version 1.3.4 KEVCVSS 3.1CRITICAL 9.8
- TI-2021-05589 Hard-coded credentials in EVlink City , EVlink Parking , and EVlink Smart Wallbox CVSS 3.1CRITICAL 9.8
- TI-2022-15561 OS command injection in Schneider Electric SpaceLogic C-Bus Home Controller CVSS 3.1HIGH 8.8
- TI-2023-04970 Path traversal in Schneider Electric C-Bus Toolkit CVSS 3.1CRITICAL 9.8
- TI-2019-04862 Improper handling of exceptional conditions in Schneider Electric Modicon M580 CVSS 3.1HIGH 7.5
- TI-2018-05690 Improper handling of exceptional conditions in Modicon M580 Modicon M340 Modicon Quantum… CVSS 3.1HIGH 7.5
Sources
- CVE-2024-11737 · CVE Program
- CVE-2024-11737 · NVD
- FIRST EPSS
- GHSA-j45x-3v7g-qxh8 · GitHub Advisory Database · CC BY 4.0
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