Missing authentication in Easergy T200 SC2-04MOD-07000100 and earlier), Easergy T200…
Priority MEDIUM 45CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- 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-306.
Summary
A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier) that could cause unauthorized operation when authentication is bypassed.
Why it matters now
EPSS 0.01541 75th 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 |
|---|---|---|---|---|---|
| — | Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier) | Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier) | — | No fix listed | CNA |
- Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier) Vendor— Affected Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier) Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:t200i_firmware:*:*:*:*:*:*:*:* | up to sc2-04mod-07000100 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:t200i:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:t200i_firmware:*:*:*:*:*:*:*:* | up to sc2-04iec-07000100; up to sc2-04dnp-07000102 | Vulnerable | Schneider Electric |
| cpe:2.3:o:schneider-electric:t200e_firmware:*:*:*:*:*:*:*:* | up to sc2-04mod-07000100 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:t200e:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:t200e_firmware:*:*:*:*:*:*:*:* | up to sc2-04iec-07000100; up to sc2-04dnp-07000102 | Vulnerable | Schneider Electric |
| cpe:2.3:o:schneider-electric:t200p_firmware:*:*:*:*:*:*:*:* | up to sc2-04mod-07000100 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:t200p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:t200p_firmware:*:*:*:*:*:*:*:* | up to sc2-04iec-07000100; up to sc2-04dnp-07000102 | Vulnerable | Schneider Electric |
- cpe:2.3:o:schneider-electric:t200i_firmware:*:*:*:*:*:*:*:* Versions up to sc2-04mod-07000100 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:t200i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:t200i_firmware:*:*:*:*:*:*:*:* Versions up to sc2-04iec-07000100; up to sc2-04dnp-07000102 Vulnerable ·Schneider Electric
- cpe:2.3:o:schneider-electric:t200e_firmware:*:*:*:*:*:*:*:* Versions up to sc2-04mod-07000100 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:t200e:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:t200e_firmware:*:*:*:*:*:*:*:* Versions up to sc2-04iec-07000100; up to sc2-04dnp-07000102 Vulnerable ·Schneider Electric
- cpe:2.3:o:schneider-electric:t200p_firmware:*:*:*:*:*:*:*:* Versions up to sc2-04mod-07000100 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:t200p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:t200p_firmware:*:*:*:*:*:*:*:* Versions up to sc2-04iec-07000100; up to sc2-04dnp-07000102 Vulnerable ·Schneider Electric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-22772
- 2026-10-03 Alias added: GHSA-9gg2-wj6f-29qm
References
Sources
- CVE-2021-22772 · CVE Program
- CVE-2021-22772 · NVD
- FIRST EPSS
- GHSA-9gg2-wj6f-29qm · GitHub Advisory Database · CC BY 4.0
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