Missing authentication in Modicon and PacDrive Controller, All versions of: Modicon M100…
Priority MEDIUM 44CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-306.
Summary
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
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01275 70th 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
- Partial
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 |
|---|---|---|---|---|---|
| — | Modicon and PacDrive Controller, 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 | Modicon and PacDrive Controller, 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 | — | No fix listed | CNA |
- Modicon and PacDrive Controller, 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 Vendor— Affected Modicon and PacDrive Controller, 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 Fixed in — No fix listed CNA
CPE configurations NVD · 24
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:modicon_m100_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m200_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m200:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m221_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m221:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:atv_imc_drive_controller_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:atv_imc_drive_controller:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
- cpe:2.3:o:schneider-electric:modicon_m100_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m200_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m221_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m221:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:atv_imc_drive_controller_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:atv_imc_drive_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
Show 14 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m258_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m258:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_lmc058_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_lmc058:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_lmc078_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_lmc078:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:pacdrive_eco_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:pacdrive_eco:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:pacdrive_pro_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:pacdrive_pro:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:pacdrive_pro2_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:pacdrive_pro2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
- cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m258_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m258:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_lmc058_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_lmc058:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_lmc078_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_lmc078:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:pacdrive_eco_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:pacdrive_eco:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:pacdrive_pro_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:pacdrive_pro:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:pacdrive_pro2_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:pacdrive_pro2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-6820
- 2026-10-03 Alias added: GHSA-phf4-8g7h-893g
References
Sources
- CVE-2019-6820 · CVE Program
- CVE-2019-6820 · NVD
- FIRST EPSS
- GHSA-phf4-8g7h-893g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences