CVE-2020-7491
Last modified
CVE-2020-7491 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. **VERSION NOT SUPPORTED WHEN ASSIGNED** A legacy debug port account in TCMs installed in Tricon system versions 10.2.0 through 10.5.3 is visible on the network and could allow inappropriate access. This vulnerability was remediated in TCM version 10.5.4.. EPSS estimates a 1.31% chance of exploitation in the next 30 days.
Description
**VERSION NOT SUPPORTED WHEN ASSIGNED** A legacy debug port account in TCMs installed in Tricon system versions 10.2.0 through 10.5.3 is visible on the network and could allow inappropriate access. This vulnerability was remediated in TCM version 10.5.4.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Schneider-Electric | Tricon Tcm 4351 Firmware | >= 10.2.0, < 10.5.4 |
| Schneider-Electric | Tricon Tcm 4352 Firmware | >= 10.2.0, < 10.5.4 |
| Schneider-Electric | Tricon Tcm 4351a Firmware | >= 10.2.0, < 10.5.4 |
| Schneider-Electric | Tricon Tcm 4351b Firmware | >= 10.2.0, < 10.5.4 |
| Schneider-Electric | Tricon Tcm 4352a Firmware | >= 10.2.0, < 10.5.4 |
| Schneider-Electric | Tricon Tcm 4352b Firmware | >= 10.2.0, < 10.5.4 |
| Schneider-Electric | Tristation 1131 Firmware | >= 1.0.0, <= 4.9.0 |
| Schneider-Electric | Tristation 1131 Firmware | >= 4.10.0, <= 4.12.0 |
References
- https://us-cert.cisa.gov/ics/advisories/icsa-20-205-01Third Party Advisory, US Government Resource
- https://www.se.com/ww/en/download/document/SESB-2020-105-01/Vendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-20-205-01Third Party Advisory, US Government Resource
- https://www.se.com/ww/en/download/document/SESB-2020-105-01/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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- 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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