CVE-2019-6820
Last modified
CVE-2019-6820 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. A CWE-306: Missing Authentication for Critical Function vulnerability exists which could cause a modification of device IP configuration (IP address, network mask and gateway IP address) when a specific Ethernet frame is received in all versions of: Modicon M100, Modicon M200, Modicon M221, ATV IMC drive controller, Modicon M241, Modicon M251, Modicon M258, Modicon LMC058, Modicon LMC078, PacDrive Eco ,PacDrive Pro, PacDrive Pro2. EPSS estimates a 1.24% chance of exploitation in the next 30 days.
Description
A CWE-306: Missing Authentication for Critical Function vulnerability exists which could cause a modification of device IP configuration (IP address, network mask and gateway IP address) when a specific Ethernet frame is received in all versions of: Modicon M100, Modicon M200, Modicon M221, ATV IMC drive controller, Modicon M241, Modicon M251, Modicon M258, Modicon LMC058, Modicon LMC078, PacDrive Eco ,PacDrive Pro, PacDrive Pro2
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Schneider-Electric | Modicon M100 Firmware | All versions |
| Schneider-Electric | Modicon M200 Firmware | All versions |
| Schneider-Electric | Modicon M221 Firmware | All versions |
| Schneider-Electric | Atv Imc Drive Controller Firmware | All versions |
| Schneider-Electric | Modicon M241 Firmware | All versions |
| Schneider-Electric | Modicon M251 Firmware | All versions |
| Schneider-Electric | Modicon M258 Firmware | All versions |
| Schneider-Electric | Modicon Lmc058 Firmware | All versions |
| Schneider-Electric | Modicon Lmc078 Firmware | All versions |
| Schneider-Electric | Pacdrive Eco Firmware | All versions |
| Schneider-Electric | Pacdrive Pro Firmware | All versions |
| Schneider-Electric | Pacdrive Pro2 Firmware | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Scan your code nowSource: NVD / NIST