VulnerabilityModified

CVE-2020-7549

MEDIUM 5.3EPSS 1.08%

Does this matter?

Lower severity and a low EPSS score (1.08%). Track it; it rarely justifies an emergency change on its own.

Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions), that could cause denial of HTTP and FTP services when a series of specially crafted requests is sent to the controller over HTTP.

CVSS 3.1: 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS: 1.08% probability · 63th percentile
CISA KEV: Not listed
Weakness: CWE-754
Affected: schneider-electric/modicon m340 bmxp341000 firmware · schneider-electric/modicon m340 bmxp342000 firmware · schneider-electric/modicon m340 bmxp3420102 firmware · schneider-electric/modicon m340 bmxp3420102cl firmware · schneider-electric/modicon m340 bmxp342020 firmware · schneider-electric/modicon m340 bmxp3420302 firmware · schneider-electric/modicon m340 bmxp3420302cl firmware · schneider-electric/bmxnoe0100 firmware · schneider-electric/bmxnoe0110 firmware · schneider-electric/bmxnoc0401 firmware · schneider-electric/140noe77111 firmware · schneider-electric/140noc78100 firmware · schneider-electric/140noc78000 firmware · schneider-electric/140cpu65150 firmware · schneider-electric/tsxety4103 firmware · schneider-electric/tsxety5103 firmware · schneider-electric/tsxp574634 firmware · schneider-electric/tsxp575634 firmware · schneider-electric/tsxp576634 firmware
Source: cybersecurity@se.com

References

https://www.se.com/ww/en/download/document/SEVD-2020-343-06/Vendor Advisory
https://www.se.com/ww/en/download/document/SEVD-2020-343-06/Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.