What’s Vulnerable › Vulnerabilities

CVE-2020-7562

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-11-18 · updated 2026-06-17
• Weakness: CWE-125

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.

Affected products

• Schneider-Electric Modicon M340 Bmx Noc 0401 Firmware: all versions
• Schneider-Electric Modicon M340 Bmx Noe 0100 Firmware: all versions
• Schneider-Electric Modicon M340 Bmx Noe 0100H Firmware: all versions
• Schneider-Electric Modicon M340 Bmx Noe 0110 Firmware: all versions
• Schneider-Electric Modicon M340 Bmx Noe 0110H Firmware: all versions
• Schneider-Electric Modicon M340 Bmx Nor 0200H Firmware: all versions
• Schneider-Electric Modicon M340 Bmx P34-2010 Firmware: all versions
• Schneider-Electric Modicon M340 Bmx P34-2030 Firmware: all versions
• Schneider-Electric Modicon Quantum 140Cpu65150 Firmware: all versions
• Schneider-Electric Modicon Quantum 140Cpu65150C Firmware: all versions
• Schneider-Electric Modicon Quantum 140Cpu65160 Firmware: all versions
• Schneider-Electric Modicon Quantum 140Cpu65160C Firmware: all versions
• Schneider-Electric Modicon Quantum 140Noc78100 Firmware: all versions
• Schneider-Electric Modicon Quantum 140Noe77101 Firmware: all versions
• Schneider-Electric Modicon Quantum 140Noe77111 Firmware: all versions
• Schneider-Electric Modicon Tsxety4103 Firmware: all versions
• Schneider-Electric Modicon Tsxety5103 Firmware: all versions
• Schneider-Electric Modicon Tsxp574634 Firmware: all versions
• Schneider-Electric Modicon Tsxp575634 Firmware: all versions
• Schneider-Electric Modicon Tsxp576634 Firmware: all versions

References

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

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