CVE-2020-7539
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 a denial of service vulnerability when a specially crafted packet is sent to the controller over HTTP.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.20% probability · 66th 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/tsxp574634 firmware · schneider-electric/tsxp575634 firmware · schneider-electric/tsxp576634 firmware · schneider-electric/tsxety4103 firmware · schneider-electric/tsxety5103 firmware · schneider-electric/140cpu65150 firmware · schneider-electric/140noe77111 firmware · schneider-electric/140noc78100 firmware · schneider-electric/140noc78000 firmware · schneider-electric/140noc77101 firmware
- Source
- cybersecurity@se.com
References
- https://www.se.com/ww/en/download/document/SEVD-2020-343-03/Vendor Advisory
- https://www.se.com/ww/en/download/document/SEVD-2020-343-03/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.