Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2019-6843

A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580 with firmware (version prior to V3.10), Modicon M340 (all firmware versions), and Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service attack on the PLC when upgrading the controller with an empty firmware package using FTP protocol.

Published

2019-10-29T19:15:21.987

Last Modified

2024-11-21T04:47:15.820

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: SINGLE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

8.0

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-755
  • Type: Primary
    CWE-755
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System schneider-electric modicon_m580_firmware * Yes
Hardware schneider-electric modicon_m580 - No
Operating System schneider-electric modicon_m340_firmware * Yes
Hardware schneider-electric modicon_m340 - No
Operating System schneider-electric modicon_bmxcra_firmware * Yes
Hardware schneider-electric modicon_bmxcra - No
Operating System schneider-electric modicon_140cra_firmware * Yes
Hardware schneider-electric modicon_140cra - No
References