CVE-2021-34569

Published: Nov 9, 2022Modified: Jun 17, 2026

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: info@cert.vde.com (Secondary)

Description

In WAGO I/O-Check Service in multiple products an attacker can send a specially crafted packet containing OS commands to crash the diagnostic tool and write memory.

Affected (196)

Wago

49 products

750 8100 Firmware

750 8101 Firmware

750 8101/025 000 Firmware

750 8102 Firmware

750 8102/025 000 Firmware

750 8202 Firmware

750 8202/000 011 Firmware

750 8202/000 012 Firmware

750 8202/000 022 Firmware

750 8202/025 000 Firmware

750 8202/025 001 Firmware

750 8202/025 002 Firmware

750 8202/040 000 Firmware

750 8202/040 001 Firmware

752 8303/8000 002 Firmware

762 4201/8000 001 Firmware

762 4202/8000 001 Firmware

762 4203/8000 001 Firmware

762 4204/8000 001 Firmware

762 4205/8000 001 Firmware

762 4205/8000 002 Firmware

762 4206/8000 001 Firmware

762 4206/8000 002 Firmware

762 4301/8000 002 Firmware

762 4302/8000 002 Firmware

762 4303/8000 002 Firmware

762 4304/8000 002 Firmware

762 4305/8000 002 Firmware

762 4306/8000 002 Firmware

762 5203/8000 001 Firmware

762 5204/8000 001 Firmware

762 5205/8000 001 Firmware

762 5206/8000 001 Firmware

762 5303/8000 002 Firmware

762 5304/8000 002 Firmware

762 5305/8000 002 Firmware

762 5306/8000 002 Firmware

762 6201/8000 001 Firmware

762 6202/8000 001 Firmware

762 6203/8000 001 Firmware

762 6204/8000 001 Firmware

762 6301/8000 002 Firmware

762 6302/8000 002 Firmware

762 6303/8000 002 Firmware

762 6304/8000 002 Firmware

Configuration A

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8100 Firmware	Before 18
Wago 750 8100 Firmware	Version 18
Wago 750 8100 Firmware	Version 18 patch_1
Wago 750 8100 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8100	All versions

Configuration B

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8101 Firmware	Before 18
Wago 750 8101 Firmware	Version 18
Wago 750 8101 Firmware	Version 18 patch_1
Wago 750 8101 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8101	All versions

Configuration C

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8101/025 000 Firmware	Before 18
Wago 750 8101/025 000 Firmware	Version 18
Wago 750 8101/025 000 Firmware	Version 18 patch_1
Wago 750 8101/025 000 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8101/025 000	All versions

Configuration D

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8102 Firmware	Before 18
Wago 750 8102 Firmware	Version 18
Wago 750 8102 Firmware	Version 18 patch_1
Wago 750 8102 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8102	All versions

Configuration E

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8102/025 000 Firmware	Before 18
Wago 750 8102/025 000 Firmware	Version 18
Wago 750 8102/025 000 Firmware	Version 18 patch_1
Wago 750 8102/025 000 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8102/025 000	All versions

Configuration F

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8202 Firmware	Before 18
Wago 750 8202 Firmware	Version 18
Wago 750 8202 Firmware	Version 18 patch_1
Wago 750 8202 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8202	All versions

Configuration G

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8202/000 011 Firmware	Before 18
Wago 750 8202/000 011 Firmware	Version 18
Wago 750 8202/000 011 Firmware	Version 18 patch_1
Wago 750 8202/000 011 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8202/000 011	All versions

Configuration H

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8202/000 012 Firmware	Before 18
Wago 750 8202/000 012 Firmware	Version 18
Wago 750 8202/000 012 Firmware	Version 18 patch_1
Wago 750 8202/000 012 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8202/000 012	All versions

Configuration I

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8202/000 022 Firmware	Before 18
Wago 750 8202/000 022 Firmware	Version 18
Wago 750 8202/000 022 Firmware	Version 18 patch_1
Wago 750 8202/000 022 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8202/000 022	All versions

Configuration J

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8202/025 000 Firmware	Before 18
Wago 750 8202/025 000 Firmware	Version 18
Wago 750 8202/025 000 Firmware	Version 18 patch_1
Wago 750 8202/025 000 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8202/025 000	All versions

Configuration K

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8202/025 001 Firmware	Before 18
Wago 750 8202/025 001 Firmware	Version 18
Wago 750 8202/025 001 Firmware	Version 18 patch_1
Wago 750 8202/025 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8202/025 001	All versions

Configuration L

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8202/025 002 Firmware	Before 18
Wago 750 8202/025 002 Firmware	Version 18
Wago 750 8202/025 002 Firmware	Version 18 patch_1
Wago 750 8202/025 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8202/025 002	All versions

Configuration M

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8202/040 000 Firmware	Before 18
Wago 750 8202/040 000 Firmware	Version 18
Wago 750 8202/040 000 Firmware	Version 18 patch_1
Wago 750 8202/040 000 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8202/040 000	All versions

Configuration N

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 8202/040 001 Firmware	Before 18
Wago 750 8202/040 001 Firmware	Version 18
Wago 750 8202/040 001 Firmware	Version 18 patch_1
Wago 750 8202/040 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 750 8202/040 001	All versions

Configuration O

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 752 8303/8000 002 Firmware	Before 18
Wago 752 8303/8000 002 Firmware	Version 18
Wago 752 8303/8000 002 Firmware	Version 18 patch_1
Wago 752 8303/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 752 8303/8000 002	All versions

Configuration P

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4101 Firmware	Before 18
Wago 762 4101 Firmware	Version 18
Wago 762 4101 Firmware	Version 18 patch_1
Wago 762 4101 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4101	All versions

Configuration Q

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4102 Firmware	Before 18
Wago 762 4102 Firmware	Version 18
Wago 762 4102 Firmware	Version 18 patch_1
Wago 762 4102 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4102	All versions

Configuration R

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4103 Firmware	Before 18
Wago 762 4103 Firmware	Version 18
Wago 762 4103 Firmware	Version 18 patch_1
Wago 762 4103 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4103	All versions

Configuration S

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4104 Firmware	Before 18
Wago 762 4104 Firmware	Version 18
Wago 762 4104 Firmware	Version 18 patch_1
Wago 762 4104 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4104	All versions

Configuration T

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4201/8000 001 Firmware	Before 18
Wago 762 4201/8000 001 Firmware	Version 18
Wago 762 4201/8000 001 Firmware	Version 18 patch_1
Wago 762 4201/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4201/8000 001	All versions

Configuration U

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4202/8000 001 Firmware	Before 18
Wago 762 4202/8000 001 Firmware	Version 18
Wago 762 4202/8000 001 Firmware	Version 18 patch_1
Wago 762 4202/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4202/8000 001	All versions

Configuration V

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4203/8000 001 Firmware	Before 18
Wago 762 4203/8000 001 Firmware	Version 18
Wago 762 4203/8000 001 Firmware	Version 18 patch_1
Wago 762 4203/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4203/8000 001	All versions

Configuration W

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4204/8000 001 Firmware	Before 18
Wago 762 4204/8000 001 Firmware	Version 18
Wago 762 4204/8000 001 Firmware	Version 18 patch_1
Wago 762 4204/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4204/8000 001	All versions

Configuration X

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4205/8000 001 Firmware	Before 18
Wago 762 4205/8000 001 Firmware	Version 18
Wago 762 4205/8000 001 Firmware	Version 18 patch_1
Wago 762 4205/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4205/8000 001	All versions

Configuration Y

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4205/8000 002 Firmware	Before 18
Wago 762 4205/8000 002 Firmware	Version 18
Wago 762 4205/8000 002 Firmware	Version 18 patch_1
Wago 762 4205/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4205/8000 002	All versions

Configuration Z

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4206/8000 001 Firmware	Before 18
Wago 762 4206/8000 001 Firmware	Version 18
Wago 762 4206/8000 001 Firmware	Version 18 patch_1
Wago 762 4206/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4206/8000 001	All versions

Configuration A

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4206/8000 002 Firmware	Before 18
Wago 762 4206/8000 002 Firmware	Version 18
Wago 762 4206/8000 002 Firmware	Version 18 patch_1
Wago 762 4206/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4206/8000 002	All versions

Configuration B

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4301/8000 002 Firmware	Before 18
Wago 762 4301/8000 002 Firmware	Version 18
Wago 762 4301/8000 002 Firmware	Version 18 patch_1
Wago 762 4301/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4301/8000 002	All versions

Configuration C

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4302/8000 002 Firmware	Before 18
Wago 762 4302/8000 002 Firmware	Version 18
Wago 762 4302/8000 002 Firmware	Version 18 patch_1
Wago 762 4302/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4302/8000 002	All versions

Configuration D

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4303/8000 002 Firmware	Before 18
Wago 762 4303/8000 002 Firmware	Version 18
Wago 762 4303/8000 002 Firmware	Version 18 patch_1
Wago 762 4303/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4303/8000 002	All versions

Configuration E

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4304/8000 002 Firmware	Before 18
Wago 762 4304/8000 002 Firmware	Version 18
Wago 762 4304/8000 002 Firmware	Version 18 patch_1
Wago 762 4304/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4304/8000 002	All versions

Configuration F

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4305/8000 002 Firmware	Before 18
Wago 762 4305/8000 002 Firmware	Version 18
Wago 762 4305/8000 002 Firmware	Version 18 patch_1
Wago 762 4305/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4305/8000 002	All versions

Configuration G

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 4306/8000 002 Firmware	Before 18
Wago 762 4306/8000 002 Firmware	Version 18
Wago 762 4306/8000 002 Firmware	Version 18 patch_1
Wago 762 4306/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 4306/8000 002	All versions

Configuration H

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 5203/8000 001 Firmware	Before 18
Wago 762 5203/8000 001 Firmware	Version 18
Wago 762 5203/8000 001 Firmware	Version 18 patch_1
Wago 762 5203/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 5203/8000 001	All versions

Configuration I

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 5204/8000 001 Firmware	Before 18
Wago 762 5204/8000 001 Firmware	Version 18
Wago 762 5204/8000 001 Firmware	Version 18 patch_1
Wago 762 5204/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 5204/8000 001	All versions

Configuration J

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 5205/8000 001 Firmware	Before 18
Wago 762 5205/8000 001 Firmware	Version 18
Wago 762 5205/8000 001 Firmware	Version 18 patch_1
Wago 762 5205/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 5205/8000 001	All versions

Configuration K

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 5206/8000 001 Firmware	Before 18
Wago 762 5206/8000 001 Firmware	Version 18
Wago 762 5206/8000 001 Firmware	Version 18 patch_1
Wago 762 5206/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 5206/8000 001	All versions

Configuration L

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 5303/8000 002 Firmware	Before 18
Wago 762 5303/8000 002 Firmware	Version 18
Wago 762 5303/8000 002 Firmware	Version 18 patch_1
Wago 762 5303/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 5303/8000 002	All versions

Configuration M

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 5304/8000 002 Firmware	Before 18
Wago 762 5304/8000 002 Firmware	Version 18
Wago 762 5304/8000 002 Firmware	Version 18 patch_1
Wago 762 5304/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 5304/8000 002	All versions

Configuration N

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 5305/8000 002 Firmware	Before 18
Wago 762 5305/8000 002 Firmware	Version 18
Wago 762 5305/8000 002 Firmware	Version 18 patch_1
Wago 762 5305/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 5305/8000 002	All versions

Configuration O

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 5306/8000 002 Firmware	Before 18
Wago 762 5306/8000 002 Firmware	Version 18
Wago 762 5306/8000 002 Firmware	Version 18 patch_1
Wago 762 5306/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 5306/8000 002	All versions

Configuration P

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 6201/8000 001 Firmware	Before 18
Wago 762 6201/8000 001 Firmware	Version 18
Wago 762 6201/8000 001 Firmware	Version 18 patch_1
Wago 762 6201/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 6201/8000 001	All versions

Configuration Q

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 6202/8000 001 Firmware	Before 18
Wago 762 6202/8000 001 Firmware	Version 18
Wago 762 6202/8000 001 Firmware	Version 18 patch_1
Wago 762 6202/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 6202/8000 001	All versions

Configuration R

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 6203/8000 001 Firmware	Before 18
Wago 762 6203/8000 001 Firmware	Version 18
Wago 762 6203/8000 001 Firmware	Version 18 patch_1
Wago 762 6203/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 6203/8000 001	All versions

Configuration S

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 6204/8000 001 Firmware	Before 18
Wago 762 6204/8000 001 Firmware	Version 18
Wago 762 6204/8000 001 Firmware	Version 18 patch_1
Wago 762 6204/8000 001 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 6204/8000 001	All versions

Configuration T

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 6301/8000 002 Firmware	Before 18
Wago 762 6301/8000 002 Firmware	Version 18
Wago 762 6301/8000 002 Firmware	Version 18 patch_1
Wago 762 6301/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 6301/8000 002	All versions

Configuration U

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 6302/8000 002 Firmware	Before 18
Wago 762 6302/8000 002 Firmware	Version 18
Wago 762 6302/8000 002 Firmware	Version 18 patch_1
Wago 762 6302/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 6302/8000 002	All versions

Configuration V

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 6303/8000 002 Firmware	Before 18
Wago 762 6303/8000 002 Firmware	Version 18
Wago 762 6303/8000 002 Firmware	Version 18 patch_1
Wago 762 6303/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 6303/8000 002	All versions

Configuration W

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 762 6304/8000 002 Firmware	Before 18
Wago 762 6304/8000 002 Firmware	Version 18
Wago 762 6304/8000 002 Firmware	Version 18 patch_1
Wago 762 6304/8000 002 Firmware	Version 18 patch_2

Running on/with	Platform Versions
Wago 762 6304/8000 002	All versions

Related CWEs

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (2)

https://cert.vde.com/en/advisories/VDE-2020-036/

Source: info@cert.vde.com

Third Party Advisory

https://cert.vde.com/en/advisories/VDE-2020-036/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.