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Fencer Intel
high 7.5

CVE-2020-7486 json

**VERSION NOT SUPPORTED WHEN ASSIGNED** A vulnerability could cause TCM modules to reset when under high network load in TCM v10.4.x and in…

published 6y ago modified 4mo ago also EUVD-2020-28611

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

**VERSION NOT SUPPORTED WHEN ASSIGNED** A vulnerability could cause TCM modules to reset when under high network load in TCM v10.4.x and in system v10.3.x. This vulnerability was discovered and remediated in version v10.5.x on August 13, 2009. TCMs from v10.5.x and on will no longer exhibit this behavior.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-20-205-01 updated cvss 7.5

Schneider Electric Triconex TriStation and Tricon Communication Module

  • Schneider Electric Software, LLC Tricon Communications Module (TCM) Models 4351 4352 4351A/B and 4352A/B installed in Tricon >= 10.0, <= 10.5.3 Schneider Electric Software, LLC TriStation 1131 >= 1.0., <=4.9.0, 4.10.0, 4.12.0
    affected: mitigation “Schneider Electric notified customers of updated product availability via direct-to-customer notification and fixed versions of these offers are available for download here.” pasupport.schneider-electric.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

1.64% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • n/a Tricon TCM Model 4351, 4352, 4351A/B, 4352A/B (v10.3.x, v10.4.x)

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.