How severe is CVE-2020-7484?

CVE-2020-7484 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-7484 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7484?

CVE-2020-7484 affects Schneider-electric Tristation 1131. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-7484?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-7484 published?

CVE-2020-7484 was published on 2020-04-16 and last updated on 2026-06-17.

CVE-2020-7484

CVE-2020-7484 is a high-severity vulnerability in Schneider-electric Tristation 1131 with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Schneider-electric Tristation 1131
Published: 2020-04-16
Last modified: 2026-06-17

Description

**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.

Frequently asked questions

What is CVE-2020-7484?: **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.
How severe is CVE-2020-7484?: CVE-2020-7484 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-7484 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7484?: CVE-2020-7484 affects Schneider-electric Tristation 1131. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-7484?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-7484 published?: CVE-2020-7484 was published on 2020-04-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:schneider-electric:tristation_1131:*:*:*:*:*:*:*:*

More vulnerabilities in Schneider-electric Tristation 1131

CVE-2020-7485 — Critical (CVSS 9.8): **VERSION NOT SUPPORTED WHEN ASSIGNED** A legacy support account in the TriStation software version v4.9.0 and earlier…
CVE-2020-7483 — High (CVSS 7.5): **VERSION NOT SUPPORTED WHEN ASSIGNED** A vulnerability could cause certain data to be visible on the network when the…

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