Vulnerability Monitor

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CVE-2021-22699

Improper Input Validation vulnerability exists in Modicon M241/M251 logic controllers firmware prior to V5.1.9.1 that could cause denial of service when specific crafted requests are sent to the controller over HTTP.

Published

2021-05-26T20:15:08.863

Last Modified

2024-11-21T05:50:29.250

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

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

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

10.0

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-20
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System schneider-electric modicon_m241_firmware < 5.1.9.1 Yes
Hardware schneider-electric modicon_m241 - No
Operating System schneider-electric modicon_m251_firmware < 5.1.9.1 Yes
Hardware schneider-electric modicon_m251 - No
References