CVE-2021-22772
Last modified
CVE-2021-22772 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.54% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Schneider-Electric | T200i Firmware | <= sc2-04mod-07000100 |
| Schneider-Electric | T200i Firmware | <= sc2-04iec-07000100 |
| Schneider-Electric | T200i Firmware | <= sc2-04dnp-07000102 |
| Schneider-Electric | T200e Firmware | <= sc2-04mod-07000100 |
| Schneider-Electric | T200e Firmware | <= sc2-04iec-07000100 |
| Schneider-Electric | T200e Firmware | <= sc2-04dnp-07000102 |
| Schneider-Electric | T200p Firmware | <= sc2-04mod-07000100 |
| Schneider-Electric | T200p Firmware | <= sc2-04iec-07000100 |
| Schneider-Electric | T200p Firmware | <= sc2-04dnp-07000102 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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