CVE-2020-7491 describes a critical vulnerability in Schneider Electric Triconex Tricon systems, specifically affecting TCMs in versions 10.2.0 through 10.5.3. A legacy debug port account, visible on the network, could grant unauthorized access to these systems. With a CVSS score of 7.5 (High), this vulnerability is remotely exploitable with low attack complexity, potentially leading to high confidentiality impact without requiring user interaction. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the vulnerability was remediated in TCM version 10.5.4.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 10.2.0, < 10.5.4CPE matchmatch criteria | cpe:2.3:o:schneider-electric:tricon_tcm_4351_firmware:*:*:*:*:*:*:*:* | ||
>= 10.2.0, < 10.5.4CPE matchmatch criteria | cpe:2.3:o:schneider-electric:tricon_tcm_4352_firmware:*:*:*:*:*:*:*:* | ||
>= 10.2.0, < 10.5.4CPE matchmatch criteria | cpe:2.3:o:schneider-electric:tricon_tcm_4351a_firmware:*:*:*:*:*:*:*:* | ||
>= 10.2.0, < 10.5.4CPE matchmatch criteria | cpe:2.3:o:schneider-electric:tricon_tcm_4351b_firmware:*:*:*:*:*:*:*:* | ||
>= 10.2.0, < 10.5.4CPE matchmatch criteria | cpe:2.3:o:schneider-electric:tricon_tcm_4352a_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.