Vulnerability Monitor

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CVE-2021-34596

A crafted request may cause a read access to an uninitialized pointer in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition.

Published

2021-10-26T10:15:08.127

Last Modified

2024-11-21T06:10:46.997

Status

Undergoing Analysis

Source

[email protected]

Severity

CVSSv3.1: 6.5 (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: Primary
    CWE-824
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application codesys plcwinnt < 2.4.7.56 Yes
Application codesys runtime_toolkit < 2.4.7.56 Yes
References