CVE-2017-7924

An Improper Input Validation issue was discovered in Rockwell Automation MicroLogix 1100 controllers 1763-L16BWA, 1763-L16AWA, 1763-L16BBB, and 1763-L16DWD. A remote, unauthenticated attacker could send a single, specially crafted Programmable Controller Communication Commands (PCCC) packet to the controller that could potentially cause the controller to enter a DoS condition.

• CWE-20
• CWE-20

• http://www.securityfocus.com/bid/99622Third Party Advisory, VDB Entry
• https://ics-cert.us-cert.gov/advisories/ICSA-17-138-03Mitigation, Third Party Advisory, US Government Resource
• http://www.securityfocus.com/bid/99622Third Party Advisory, VDB Entry
• https://ics-cert.us-cert.gov/advisories/ICSA-17-138-03Mitigation, Third Party Advisory, US Government Resource

Published

Sep 20, 2017

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.
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