CVE-2021-34595

Published Oct 26, 2021

Last updated a year ago

Overview

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.
Source
info@cert.vde.com
NVD status
Analyzed
Products
750-823_firmware, 750-829_firmware, 750-831_firmware, 750-832_firmware, 750-852_firmware, 750-862_firmware, 750-880_firmware, 750-881_firmware, 750-882_firmware, 750-885_firmware, 750-889_firmware, 750-890_firmware, 750-891_firmware, 750-893_firmware, 750-8202_firmware, 750-8203_firmware, 750-8204_firmware, 750-8206_firmware, 750-8207_firmware, 750-8208_firmware, 750-8210_firmware, 750-8211_firmware, 750-8212_firmware, 750-8213_firmware, 750-8214_firmware, 750-8216_firmware, 750-8217_firmware, codesys, plcwinnt, runtime_toolkit

Risk scores

CVSS 3.1

Type
Primary
Base score
8.1
Impact score
5.2
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Severity
HIGH

CVSS 2.0

Type
Primary
Base score
5.5
Impact score
4.9
Exploitability score
8
Vector string
AV:N/AC:L/Au:S/C:N/I:P/A:P

Weaknesses

info@cert.vde.com
CWE-823
nvd@nist.gov
CWE-119

Social media

Hype score
Not currently trending

Configurations