CVE-2020-7483Network attack vector

Network data disclosure via cleartext password check

Published Apr 15, 2020 · Updated Aug 4, 2024

Cleartext transmission in TriStation 1131 before version 4.9.1 or 4.10.1 allows remote attackers to view certain data via the optional password feature. The password check sends connection data without encryption while verifying a specific controller, exposing it to network observers. Exploitation requires the feature to be enabled and traffic to be observable on the network; the documented impact is information disclosure only.

CVSS severity7.5
High
EPSS probability0.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext transmission in TriStation 1131 before version 4.9.1 or 4.10.1 allows remote attackers to view certain data via the optional password feature. The password check sends connection data without encryption while verifying a specific controller, exposing it to network observers. Exploitation requires the feature to be enabled and traffic to be observable on the network; the documented impact is information disclosure only.

The record

CVE
CVE-2020-7483
Published
Apr 15, 2020
Updated
Aug 4, 2024
Vendor
Schneider Electric
Product
TriStation 1131
Classifications
CWE-319, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=TriStation TS1131 (v4.0.0 to v4.9.0, v4.10.0)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Schneider Electric · TriStation 1131version=TriStation TS1131 (v4.0.0 to v4.9.0, v4.10.0)

Published CVSS scores

5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information
T1040Network Sniffing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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