Schneider Electric Modicon TM221CE16R 1.3.3.3 devices allow remote attackers to discover…
Priority MEDIUM 56CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-200.
Summary
Schneider Electric Modicon TM221CE16R 1.3.3.3 devices allow remote attackers to discover the application-protection password via a \x00\x01\x00\x00\x00\x05\x01\x5a\x00\x03\x00 request to the Modbus port (502/tcp). Subsequently the application may be arbitrarily downloaded, modified, and uploaded.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.04092 90th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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
- 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 · 2
| 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: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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-7575
- 2026-10-03 Alias added: GHSA-8m3c-jvc6-q3hr
References
More Schneider Electric Modicon Tm221ce16r Firmware vulnerabilities
- TI-2017-05213 Schneider Electric SoMachine Basic 1.4 SP1 and Schneider Electric Modicon TM221CE16R… CVSS 3.1CRITICAL 10.0
Sources
- CVE-2017-7575 · CVE Program
- CVE-2017-7575 · NVD
- FIRST EPSS
- GHSA-8m3c-jvc6-q3hr · 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