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Vulnerability record · CVE-2020-25178 · published 18 March 2022

CVE-2020-25178: Schneider-electric easergy t300 firmware cleartext transmission vulnerability

Schneider Electric · Easergy T300 Firmware

ISaGRAF Workbench communicates with Rockwell Automation ISaGRAF Runtime Versions 4.x and 5.x using TCP/IP. This communication protocol provides various file system operations, as well as the uploading of applications. Data is transferred over this protocol unencrypted, which could allow a remote unauthenticated attacker to upload, read, and delete files.

8.8 CVSS 3.1 High EPSS 1.7% · top 23.8% CWE-319 · Cleartext transmission
8.8CVSS 3.1 base score, v2 9.3
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
17Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

ISaGRAF Workbench communicates with Rockwell Automation ISaGRAF Runtime Versions 4.x and 5.x using TCP/IP. This communication protocol provides various file system operations, as well as the uploading of applications. Data is transferred over this protocol unencrypted, which could allow a remote unauthenticated attacker to upload, read, and delete files.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

17 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-04 Vendor Advisory
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131699 Permissions Required
https://www.cisa.gov/uscert/ics/advisories/icsa-20-280-01 Third Party AdvisoryUS Government Resource
https://www.xylem.com/siteassets/about-xylem/cybersecurity/advisories/xylem-multismart-rockwell-isagraf.pdf Vendor Advisory
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-04 Vendor Advisory
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131699 Permissions Required
https://www.cisa.gov/uscert/ics/advisories/icsa-20-280-01 Third Party AdvisoryUS Government Resource
https://www.xylem.com/siteassets/about-xylem/cybersecurity/advisories/xylem-multismart-rockwell-isagraf.pdf Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-25176Schneider-electric easergy t300 firmware relative path traversal vulnerabilitySome commands used by the Rockwell Automation ISaGRAF Runtime Versions 4.x and 5.x eXchange Layer (IXL) protocol perform various file operations in t…EPSS 6.4%6.7CVE-2020-25182Schneider-electric easergy t300 firmware uncontrolled search path element vulnerabilityRockwell Automation ISaGRAF Runtime Versions 4.x and 5.x searches for and loads DLLs as dynamic libraries. Uncontrolled loading of dynamic libraries …EPSS 0.45%6.5CVE-2020-25180Schneider-electric easergy t300 firmware hard-coded credentials vulnerabilityRockwell Automation ISaGRAF Runtime Versions 4.x and 5.x includes the functionality of setting a password that is required to execute privileged comm…EPSS 1.2%5.5CVE-2020-25184Schneider-electric easergy t300 firmware insufficiently protected credentials vulnerabilityRockwell Automation ISaGRAF Runtime Versions 4.x and 5.x stores the password in plaintext in a file that is in the same directory as the executable f…EPSS 0.44%

Source: NIST National Vulnerability Database (record CVE-2020-25178), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.