CVE-2021-34581

HIGH

WAGO 750-831/880/881/889 Firmware FW4-FW15 - Unauthenticated Denial of Service via OpenSSL Resource Leak

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References
Third Party Advisory x_refsource_confirm
https://cert.vde.com/en-us/advisories/vde-2021-038

Scores

CVSS v3 7.5
EPSS 0.0099
EPSS Percentile 57.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-772
Status published
Products (9)
wago/750-831\/000-002_firmware fw4 - fw15
wago/750-831_firmware fw4 - fw15
wago/750-880\/025-000_firmware fw4 - fw15
wago/750-880\/025-001_firmware fw4 - fw15
wago/750-880\/025-002_firmware fw4 - fw15
wago/750-880\/040-000_firmware fw4 - fw15
wago/750-880_firmware fw4 - fw15
wago/750-881_firmware fw4 - fw15
wago/750-889_firmware fw4 - fw15
Published Aug 31, 2021
Tracked Since Feb 18, 2026