CVE-2021-34581

Published: Aug 31, 2021Modified: Jun 17, 2026

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

Missing Release of Resource after Effective Lifetime vulnerability in OpenSSL implementation of WAGO 750-831/xxx-xxx, 750-880/xxx-xxx, 750-881, 750-889 in versions FW4 up to FW15 allows an unauthenticated attacker to cause DoS on the device.

Affected (9)

Products: Wago: 750 880/040 000 Firmware, 750 880/025 002 Firmware, 750 880/025 001 Firmware, 750 880/025 000 Firmware, 750 831/000 002 Firmware, 750 889 Firmware, 750 881 Firmware, 750 831 Firmware, 750 880 Firmware

9 products

750 880/040 000 Firmware

750 880/025 002 Firmware

750 880/025 001 Firmware

750 880/025 000 Firmware

750 831/000 002 Firmware

750 889 Firmware

750 881 Firmware

750 831 Firmware

750 880 Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 880/040 000 Firmware	From fw4 to fw15

Running on/with	Platform Versions
Wago 750 880/040 000	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 880/025 002 Firmware	From fw4 to fw15

Running on/with	Platform Versions
Wago 750 880/025 002	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 880/025 001 Firmware	From fw4 to fw15

Running on/with	Platform Versions
Wago 750 880/025 001	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 880/025 000 Firmware	From fw4 to fw15

Running on/with	Platform Versions
Wago 750 880/025 000	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 831/000 002 Firmware	From fw4 to fw15

Running on/with	Platform Versions
Wago 750 831/000 002	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 889 Firmware	From fw4 to fw15

Running on/with	Platform Versions
Wago 750 889	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 881 Firmware	From fw4 to fw15

Running on/with	Platform Versions
Wago 750 881	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 831 Firmware	From fw4 to fw15

Running on/with	Platform Versions
Wago 750 831	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Wago 750 880 Firmware	From fw4 to fw15

Running on/with	Platform Versions
Wago 750 880	All versions

Related CWEs

Missing Release of Resource after Effective Lifetime

The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.

References (2)

https://cert.vde.com/en-us/advisories/vde-2021-038

Source: info@cert.vde.com

Third Party Advisory

https://cert.vde.com/en-us/advisories/vde-2021-038

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

Third Party Advisory

Timeline

No history available yet.