CVE-2021-21778

HIGH

lib60870.NET 2.2.0 - Unauthenticated Denial of Service via ASDU Message Processing

Title source: llm
STIX 2.1

Description

A denial of service vulnerability exists in the ASDU message processing functionality of MZ Automation GmbH lib60870.NET 2.2.0. A specially crafted network request can lead to loss of communications. An attacker can send an unauthenticated message to trigger this vulnerability.

References (1)

Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1236

Scores

CVSS v3 7.5
EPSS 0.0122
EPSS Percentile 64.7%
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-617
Status published
Products (1)
mz-automation/lib60870 2.2.0
Published Aug 25, 2021
Tracked Since Feb 18, 2026