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CVE-2021-34593

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CVE-2021-34593

Published: Oct 26, 2021

Modified: Sep 17, 2024

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing the PLC.

VendorProductVersions

CODESYS

CODESYS V2

affected
Runtime Toolkit 32 bit full - < V2.4.7.56
affected
PLCWinNT - < V2.4.7.56

Weaknesses (CWE)

CWE-755

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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