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
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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