Schneider Electric SoMachine Basic 1.4 SP1 and Schneider Electric Modicon TM221CE16R…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-321.
Summary
Schneider Electric SoMachine Basic 1.4 SP1 and Schneider Electric Modicon TM221CE16R 1.3.3.3 devices have a hardcoded-key vulnerability. The Project Protection feature is used to prevent unauthorized users from opening an XML protected project file, by prompting the user for a password. This XML file is AES-CBC encrypted; however, the key used for encryption (SoMachineBasicSoMachineBasicSoMa) cannot be changed. After decrypting the XML file with this key, the user password can be found in the decrypted data. After reading the user password, the project can be opened and modified with the Schneider product.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:modicon_tm221ce16r_firmware:1.3.3.3:*:*:*:*:*:*:* | 1.3.3.3 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_tm221ce16r:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:a:schneider-electric:somachine:1.4:sp1:*:*:*:*:*:* | 1.4 sp1 | Vulnerable | Schneider Electric |
- cpe:2.3:o:schneider-electric:modicon_tm221ce16r_firmware:1.3.3.3:*:*:*:*:*:*:* Versions 1.3.3.3 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_tm221ce16r:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:a:schneider-electric:somachine:1.4:sp1:*:*:*:*:*:* Versions 1.4 sp1 Vulnerable ·Schneider Electric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-7574
- 2026-10-03 Alias added: GHSA-v5jg-gm3q-h894
References
More Schneider Electric Modicon Tm221ce16r Firmware vulnerabilities
- TI-2017-05214 Schneider Electric Modicon TM221CE16R 1.3.3.3 devices allow remote attackers to discover… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2017-7574 · CVE Program
- CVE-2017-7574 · NVD
- FIRST EPSS
- GHSA-v5jg-gm3q-h894 · 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