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Vulnerability record · CVE-2020-7562 · published 18 November 2020

CVE-2020-7562: Schneider-electric modicon tsxety4103 firmware out-of-bounds read vulnerability

Schneider Electric · Modicon Tsxety4103 Firmware

A CWE-125: Out-of-Bounds Read vulnerability exists in the Web Server on Modicon M340, Modicon Quantum and Modicon Premium Legacy offers and their Communication Modules (see notification for details) which could cause a segmentation fault or a buffer overflow when uploading a specially crafted file on the controller over FTP.

8.1 CVSS 3.1 High EPSS 0.90% · top 41.5% CWE-125 · Out-of-bounds read
8.1CVSS 3.1 base score, v2 5.8
0.90%EPSS exploitation probability, 30 days
NoNot in CISA KEV
20Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A CWE-125: Out-of-Bounds Read vulnerability exists in the Web Server on Modicon M340, Modicon Quantum and Modicon Premium Legacy offers and their Communication Modules (see notification for details) which could cause a segmentation fault or a buffer overflow when uploading a specially crafted file on the controller over FTP.

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

Affected products

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

References

LinkTags
https://www.se.com/ww/en/download/document/SEVD-2020-315-01/ Vendor Advisory
https://www.se.com/ww/en/download/document/SEVD-2020-315-01/ Vendor Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2020-7562), CISA KEV, FIRST EPSS (scores of 2026-10-07). This page is refreshed as NVD updates the record.