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Fencer Vulns
high 7.5

CVE-2020-7484 json

**VERSION NOT SUPPORTED WHEN ASSIGNED** A vulnerability with the former 'password' feature could allow a denial of service attack if the us…

published 2020-04-15 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-28609

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

**VERSION NOT SUPPORTED WHEN ASSIGNED** A vulnerability with the former 'password' feature could allow a denial of service attack if the user is not following documented guidelines pertaining to dedicated TriStation connection and key-switch protection. This vulnerability was discovered and remediated in versions v4.9.1 and v4.10.1 on May 30, 2013. This feature is not present in version v4.9.1 and v4.10.1 through current. Therefore, the vulnerability is not present in these versions.

Patch / fix

  • schneider-electric tristation_1131 4.13.0

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

1.33% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

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 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected products

  • n/a TriStation TS1131 (v4.0.0 to v4.9.0, v4.10.0)

References

Sources

Fencer Vulns 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.