Incorrect authorization in EcoStruxure Control Expert , Unity Pro , Modicon M340 , and…
Priority LOW 34CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-863.
Summary
Incorrect Authorization vulnerability exists in EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20) , and Modicon M580 (all versions prior to V3.10), which could cause a bypass of the authentication process between EcoStruxure Control Expert and the M340 and M580 controllers.
Why it matters now
EPSS 0.00955 61st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20) , and Modicon M580 (all versions prior to V3.10) | EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20) , and Modicon M580 (all versions prior to V3.10) | — | No fix listed | CNA |
- EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20) , and Modicon M580 (all versions prior to V3.10) Vendor— Affected EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20) , and Modicon M580 (all versions prior to V3.10) Fixed in — No fix listed CNA
CPE configurations NVD · 45
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:schneider-electric:ecostruxure_control_expert:*:*:*:*:*:*:*:* | before 14.1 | Vulnerable | Schneider Electric |
| cpe:2.3:a:schneider-electric:ecostruxure_control_expert:14.1:-:*:*:*:*:*:* | 14.1 | Vulnerable | Schneider Electric |
| cpe:2.3:a:schneider-electric:unity_pro:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmep584040_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep584040:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmeh584040_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmep586040_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep586040:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmeh586040_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
- cpe:2.3:a:schneider-electric:ecostruxure_control_expert:*:*:*:*:*:*:*:* Versions before 14.1 Vulnerable ·Schneider Electric
- cpe:2.3:a:schneider-electric:ecostruxure_control_expert:14.1:-:*:*:*:*:*:* Versions 14.1 Vulnerable ·Schneider Electric
- cpe:2.3:a:schneider-electric:unity_pro:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmep584040_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep584040:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmeh584040_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmep586040_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep586040:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmeh586040_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
Show 35 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmep581020_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep581020:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmep582020_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep582020:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmep582040_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep582040:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmep583020_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep583020:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmep583040_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep583040:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmep584020_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep584020:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmep585040_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep585040:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmeh582040_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmep584040s_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep584040s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmeh584040s_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmeh586040s_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m580_bmep582040s_firmware:*:*:*:*:*:*:*:* | before 3.10 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep582040s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302_firmware:*:*:*:*:*:*:*:* | before 3.20 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m340_bmxp3420302:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m340_bmxp342020_firmware:*:*:*:*:*:*:*:* | before 3.20 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m340_bmxp342020:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m340_bmxp342000_firmware:*:*:*:*:*:*:*:* | before 3.20 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m340_bmxp342000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m340_bmxp341000_firmware:*:*:*:*:*:*:*:* | before 3.20 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m340_bmxp341000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102_firmware:*:*:*:*:*:*:*:* | before 3.20 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m340_bmxp3420102:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmep581020_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep581020:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmep582020_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep582020:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmep582040_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep582040:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmep583020_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep583020:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmep583040_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep583040:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmep584020_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep584020:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmep585040_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep585040:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmeh582040_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmep584040s_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep584040s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmeh584040s_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmeh586040s_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m580_bmep582040s_firmware:*:*:*:*:*:*:*:* Versions before 3.10 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep582040s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302_firmware:*:*:*:*:*:*:*:* Versions before 3.20 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m340_bmxp3420302:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp342020_firmware:*:*:*:*:*:*:*:* Versions before 3.20 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m340_bmxp342020:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp342000_firmware:*:*:*:*:*:*:*:* Versions before 3.20 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m340_bmxp342000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp341000_firmware:*:*:*:*:*:*:*:* Versions before 3.20 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m340_bmxp341000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102_firmware:*:*:*:*:*:*:*:* Versions before 3.20 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m340_bmxp3420102:-:*:*:*:*:*:*:* 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-2019-6855
- 2026-10-03 Alias added: GHSA-f79p-hq3g-prjw
References
More Schneider Electric Ecostruxure Control Expert vulnerabilities
- TI-2021-05677 Path traversal in Schneider Electric EcoStruxure Control Expert CVSS 3.1HIGH 7.8
- TI-2022-09848 A heap-based buffer overflow exists in XML Decompression DecodeTreeBlock in AT&T Labs… CVSS 3.1CRITICAL 9.8
- TI-2021-05659 Authentication bypass by spoofing in EcoStruxure Control Expert , EcoStruxure Control… CVSS 3.1CRITICAL 9.1
- TI-2020-17142 Missing brute-force protection in PLC Simulator on EcoStruxureª Control Expert CVSS 3.1CRITICAL 9.8
- TI-2022-22597 Authentication bypass by capture-replay in Schneider Electric EcoStruxure Control Expert CVSS 3.1CRITICAL 9.8
- TI-2022-22596 Improper check for unusual conditions in Schneider Electric EcoStruxure Control Expert CVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-6855 · CVE Program
- CVE-2019-6855 · NVD
- FIRST EPSS
- GHSA-f79p-hq3g-prjw · 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