Auth bypass in Schneider-Electric T200e
CVE-2021-22772
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.015 (74.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Schneider-Electric T200e
- Schneider-Electric T200e Firmware
- Schneider-Electric T200i
- Schneider-Electric T200i Firmware
- Schneider-Electric T200p
- Schneider-Electric T200p Firmware
- Easergy T200 ((Modbus) Sc2-04mod-07000100 And Earlier), ((Iec104) Sc2-04iec-07000100 ((Dnp3) Sc2-04dnp-07000102 Earlier) — versions 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)
Weakness classification (CWE)
References
- download.schneider-electric.com/files (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-22772?
- CVE-2021-22772 is a critical-severity vulnerability in Schneider-Electric T200e, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2021-07-21.
- How severe is CVE-2021-22772?
- Critical severity. CVSS v3 base score is 9.8 out of 10.