CVE-2021-34595 Vulnerability Details

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CVE-2021-34595 Metadata Quick Info

CVE Published: 26/10/2021 | CVE Updated: 17/09/2024 | CVE Year: 2021
Source: CERTVDE | Vendor: CODESYS | Product: CODESYS V2
Status : PUBLISHED

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CVE-2021-34595 Description

A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory overwrite.

Metrics

CVSS Version: 3.1 | Base Score: 8.1 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

l➤ Exploitability Metrics:
    Attack Vector (AV)* NETWORK
    Attack Complexity (AC)* LOW
    Privileges Required (PR)* LOW
    User Interaction (UI)* NONE
    Scope (S)* UNCHANGED

l➤ Impact Metrics:
    Confidentiality Impact (C)* NONE
    Integrity Impact (I)* HIGH
    Availability Impact (A)* HIGH

Weakness Enumeration (CWE)

CWE-ID: CWE-823
CWE Name: CWE-823 Use of Out-of-range Pointer Offset
Source: CODESYS

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-ID:
CAPEC Description:


Source: NVD (National Vulnerability Database).