CVE-2021-21778

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.

• CWE-617

• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1236Exploit, Third Party Advisory
• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1236Exploit, Third Party Advisory

Published

Aug 25, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-21772A use-after-free vulnerability exists in the NMR::COpcPackag…8.1
• CVE-2021-21773An out-of-bounds write vulnerability exists in the TIFF head…7.8
• CVE-2021-21774Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
• CVE-2021-21775A use-after-free vulnerability exists in the way certain eve…8
• CVE-2021-21776An out-of-bounds write vulnerability exists in the SGI Forma…8.8
• CVE-2021-21777An information disclosure vulnerability exists in the Ethern…10
• CVE-2021-21779A use-after-free vulnerability exists in the way Webkit’s Gr…8.8
• CVE-2021-2178Vulnerability in the MySQL Server product of Oracle MySQL (c…6.5
• CVE-2021-21781An information disclosure vulnerability exists in the ARM SI…3.3
• CVE-2021-21782An out-of-bounds write vulnerability exists in the SGI forma…8.8
• CVE-2021-21783A code execution vulnerability exists in the WS-Addressing p…9.8
• CVE-2021-21784An out-of-bounds write vulnerability exists in the JPG forma…7.8