Squidbleed Vulnerability - Heap Buffer Overread Signature

Ankit Mehta@Secvyn

•updated Jun 24, 2026•3•0•5

This rule detects potential exploitation attempts related to the Squidbleed vulnerability, specifically looking for command-line arguments indicative of heap buffer overread conditions within the 'squid.exe' process. It monitors for keywords such as 'strchr', 'buffer', 'overread', 'parse', 'directory', and 'listing' in the command line.