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High severity7.5NVD Advisory· Published Aug 25, 2021· Updated Jun 17, 2026

CVE-2021-21778

CVE-2021-21778

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.

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Affected products

3
  • Mz Automation/Lib608702 versions
    cpe:2.3:a:mz-automation:lib60870:2.2.0:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:mz-automation:lib60870:2.2.0:*:*:*:*:*:*:*
    • (no CPE)range: =2.2.0
  • MZ Automation GmbH/lib60870.NETdescription

Patches

Vulnerability mechanics

References

1

News mentions

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