CVE-2021-21778

7.5 highEPSS 1.3%

High (7.5) in mz-automation lib60870. EPSS 1.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)
CWE: CWE-617
Published: 2021-08-25
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mz-automation:lib60870

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1236
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1236

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