A CWE-494: Download of Code Without Integrity Check vulnerability exists in PLC Simulator…
Priority MEDIUM 40CWE-494Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-494.
Summary
A CWE-494: Download of Code Without Integrity Check vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) that could cause unauthorized command execution when sending specially crafted requests over Modbus.
Why it matters now
EPSS 0.01178 67th 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 |
|---|---|---|---|---|---|
| — | PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) | PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) | — | No fix listed | CNA |
- PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) Vendor— Affected PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:schneider-electric:ecostruxure_control_expert:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
- cpe:2.3:a:schneider-electric:ecostruxure_control_expert:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-28213
- 2026-10-03 Alias added: GHSA-45p7-9xjf-9687
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-2020-28213 · CVE Program
- CVE-2020-28213 · NVD
- FIRST EPSS
- GHSA-45p7-9xjf-9687 · 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