CVE-2020-7563
A CWE-787: Out-of-bounds Write 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 corruption of data, a crash, or…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A CWE-787: Out-of-bounds Write 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 corruption of data, a crash, or code execution when uploading a specially crafted file on the controller over FTP.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.13% probability · 66th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- schneider-electric/modicon tsxety4103 firmware · schneider-electric/modicon tsxety5103 firmware · schneider-electric/modicon tsxp574634 firmware · schneider-electric/modicon tsxp575634 firmware · schneider-electric/modicon tsxp576634 firmware · schneider-electric/modicon quantum 140noe77101 firmware · schneider-electric/modicon quantum 140noe77111 firmware · schneider-electric/modicon quantum 140noc78100 firmware · schneider-electric/modicon quantum 140cpu65150 firmware · schneider-electric/modicon quantum 140cpu65150c firmware · schneider-electric/modicon quantum 140cpu65160c firmware · schneider-electric/modicon quantum 140cpu65160 firmware · schneider-electric/modicon m340 bmx p34-2010 firmware · schneider-electric/modicon m340 bmx p34-2030 firmware · schneider-electric/modicon m340 bmx noc 0401 firmware · schneider-electric/modicon m340 bmx noe 0100 firmware · schneider-electric/modicon m340 bmx noe 0100h firmware · schneider-electric/modicon m340 bmx noe 0110 firmware · schneider-electric/modicon m340 bmx noe 0110h firmware · schneider-electric/modicon m340 bmx nor 0200h firmware
- Source
- cybersecurity@se.com
EPSS 1.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.